656713565020 has 24 divisors (see below), whose sum is σ = 1379442312864. Its totient is φ = 262619935296.

The previous prime is 656713565003. The next prime is 656713565033. The reversal of 656713565020 is 20565317656.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4010904 + ... + 4171423.

It is an arithmetic number, because the mean of its divisors is an integer number (57476763036).

Almost surely, 2^656713565020 is an apocalyptic number.

It is an amenable number.

656713565020 is an abundant number, since it is smaller than the sum of its proper divisors (722728747844).

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

656713565020 is a wasteful number, since it uses less digits than its factorization.

656713565020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8186349 (or 8186347 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 46.

The spelling of 656713565020 in words is "six hundred fifty-six billion, seven hundred thirteen million, five hundred sixty-five thousand, twenty".