56668700264 has 16 divisors (see below), whose sum is σ = 115913250720. Its totient is φ = 25758500080.

The previous prime is 56668700251. The next prime is 56668700267. The reversal of 56668700264 is 46200786665.

It is a happy number.

It is a super-2 number, since 2×56668700264² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56668700267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321981164 + ... + 321981339.

It is an arithmetic number, because the mean of its divisors is an integer number (7244578170).

Almost surely, 2^56668700264 is an apocalyptic number.

It is an amenable number.

56668700264 is an abundant number, since it is smaller than the sum of its proper divisors (59244550456).

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

56668700264 is a wasteful number, since it uses less digits than its factorization.

56668700264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643962520 (or 643962516 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 56668700264 in words is "fifty-six billion, six hundred sixty-eight million, seven hundred thousand, two hundred sixty-four".