56187231664 has 20 divisors (see below), whose sum is σ = 112374464320. Its totient is φ = 27187369920.

The previous prime is 56187231637. The next prime is 56187231679. The reversal of 56187231664 is 46613278165.

56187231664 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56639859 + ... + 56640850.

It is an arithmetic number, because the mean of its divisors is an integer number (5618723216).

Almost surely, 2^56187231664 is an apocalyptic number.

It is an amenable number.

56187231664 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

56187231664 is a wasteful number, since it uses less digits than its factorization.

56187231664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113280748 (or 113280742 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The spelling of 56187231664 in words is "fifty-six billion, one hundred eighty-seven million, two hundred thirty-one thousand, six hundred sixty-four".