56311166436 has 48 divisors (see below), whose sum is σ = 152624814720. Its totient is φ = 15825150720.

The previous prime is 56311166407. The next prime is 56311166441. The reversal of 56311166436 is 63466111365.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5489721 + ... + 5499968.

It is an arithmetic number, because the mean of its divisors is an integer number (3179683640).

Almost surely, 2^56311166436 is an apocalyptic number.

It is an amenable number.

56311166436 is an abundant number, since it is smaller than the sum of its proper divisors (96313648284).

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

56311166436 is a wasteful number, since it uses less digits than its factorization.

56311166436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10989764 (or 10989762 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The spelling of 56311166436 in words is "fifty-six billion, three hundred eleven million, one hundred sixty-six thousand, four hundred thirty-six".