656716722116 has 72 divisors (see below), whose sum is σ = 1451264371200. Its totient is φ = 259799930208.

The previous prime is 656716722073. The next prime is 656716722253. The reversal of 656716722116 is 611227617656.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1184276 + ... + 1648011.

It is an arithmetic number, because the mean of its divisors is an integer number (20156449600).

Almost surely, 2^656716722116 is an apocalyptic number.

It is an amenable number.

656716722116 is an abundant number, since it is smaller than the sum of its proper divisors (794547649084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

656716722116 is a wasteful number, since it uses less digits than its factorization.

656716722116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832338 (or 2832309 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 50.

The spelling of 656716722116 in words is "six hundred fifty-six billion, seven hundred sixteen million, seven hundred twenty-two thousand, one hundred sixteen".