56516560156 has 36 divisors (see below), whose sum is σ = 113573866224. Its totient is φ = 24106057920.

The previous prime is 56516560153. The next prime is 56516560189. The reversal of 56516560156 is 65106561565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56516560153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1223920 + ... + 1269256.

Almost surely, 2^56516560156 is an apocalyptic number.

It is an amenable number.

56516560156 is an abundant number, since it is smaller than the sum of its proper divisors (57057306068).

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

56516560156 is a wasteful number, since it uses less digits than its factorization.

56516560156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45770 (or 45557 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 56516560156 in words is "fifty-six billion, five hundred sixteen million, five hundred sixty thousand, one hundred fifty-six".