666 has some interesting mathematical properties, as many / most numbers do, apart from the well-known spiritual / occult / whatever connotations, whether true or false, no idea, and not interested in that stuff.
Also see Harshad numbers and Kaprekar numbers.
ChatGPT can't seem to find a word with a sum of ASCII codes of exactly 666.
What the devil!
Er, I mean, what the ChatGPT!
btw, i happened to notice that my karma was 666 (around the time of posting), that's why i googled the number and then posted about it, knowing that many numbers have interesting properties.
go figure (pun intended).
Personally I prefer 668, the Neighbor of the Beast.