Yet, the oldest manuscript of Revelation 13 we have (P115) says the number is 616.
Older doesn’t necessarily mean it’s more reliable......
I think the 616 argument is a deception. To top Greek and Hebrew experts of our day (e.g. Dr Arnold Fructenbaum and others) have not endorsed this view. Besides, how is 616 the number of man? Was man made on the 1st day? 666 is a reference to trusting man, instead of the Father, Son, and Holy Spirit. Or trusting Me, Myself, and I.