56755385616 has 80 divisors (see below), whose sum is σ = 147165937920. Its totient is φ = 18847902720.

The previous prime is 56755385587. The next prime is 56755385623. The reversal of 56755385616 is 61658355765.

It is a happy number.

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, 21652786 + ... + 21655406.

It is an arithmetic number, because the mean of its divisors is an integer number (1839574224).

Almost surely, 2^56755385616 is an apocalyptic number.

It is an amenable number.

56755385616 is an abundant number, since it is smaller than the sum of its proper divisors (90410552304).

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

56755385616 is a wasteful number, since it uses less digits than its factorization.

56755385616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4144 (or 4138 counting only the distinct ones).

The product of its digits is 22680000, while the sum is 57.

The spelling of 56755385616 in words is "fifty-six billion, seven hundred fifty-five million, three hundred eighty-five thousand, six hundred sixteen".