Number shoudln't be viewed as literal since they rarely were.
Rarely, yes, but sometimes they were/are... and some in the revelation are, dear P (the greatest of love and peace to you and your household... and to you and yours, too, dear Sab!). The problem with the revelation is the ususal "baby with the bathwater" thing - considering ALL numbers as symbolic as well as consider them ALL literal. Because we, humans, don't know which are/aren't... it really is folly on our part to keep trying to figure out and/or opine as to which applies to which - WE... will get it wrong!
There is One, though, who knows... from whom WE can know... because he is the One who gave it to Michael (whose voice is like a trumpet AND who is my Lord's "guardian [ark]angel" - the OTHER cherub that was "covering", of the two on the Propitiatory)... who gave it to John. John wrote what he saw as best he could write it. What he saw was multi-multi-dimensional (as if look though a clear cube and perceiving all six sides at once... only this vision was far, far, more multi-faceted than a cube... than a diamond, actually)... but he was able to see many "sides" of it at once. Because writing is linear, however... strung along like, well, pearls... what we get seems not only chronological but often symbolic. And some of it is... and some of it isn't. I have seen a great deal of it, which is how I came to understand what John saw, which I had to do in order to better understand it.
Rather than lean upon our own understanding as to what IS literal and what is symbolic... whether numbers, or beasts, or mountains, or women... or stars, or lampstands, or congregations... or thrones, or scrolls, or bowls, or trumpets... or seas, or seeds, or scrolls... all of which are depicted there, and much, much more... we should simply go to that One. I mean, if he had the authority to give it an angel... and then grant that one to give it to John... and he gave the introduction as to whom John was to share it with... he of all people would know what it ALL means. Right?
All we need do is ASK. Without doubting, of course, but also with a heart that WANTS to know. NOT just so we can say, "Oooh, looky me, I KNOW what it says/means!" but so that we can use it to fulfill it's PURPOSE: helping to build the "temple", which is also depicted in it... by building up the Body (of Christ). That is the purpose of ALL of the gifts of the Spirit - prophesy, as well as revelation, which this accounts includes.
Keep seeking, then, and asking, and knocking... and it WILL be opened to you. The Door (that is Christ - John 10:9)... so as to "enter" and see these things for oneself... as well as the understanding of what John heard... and saw... as set out in these "scriptures" - (Luke 24:27, 32, 45; Revelation 3:17)
I hope this helps and, again, peace to you, both!
YOUR servant and a slave of Christ,
SA