56856145216 has 56 divisors (see below), whose sum is σ = 121532501664. Its totient is φ = 26234856960.

The previous prime is 56856145207. The next prime is 56856145217. The reversal of 56856145216 is 61254165865.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 56856145216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56856145217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5794971 + ... + 5804773.

It is an arithmetic number, because the mean of its divisors is an integer number (2170223244).

Almost surely, 2^56856145216 is an apocalyptic number.

It is an amenable number.

56856145216 is an abundant number, since it is smaller than the sum of its proper divisors (64676356448).

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

56856145216 is a wasteful number, since it uses less digits than its factorization.

56856145216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16799 (or 16789 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 49.

The spelling of 56856145216 in words is "fifty-six billion, eight hundred fifty-six million, one hundred forty-five thousand, two hundred sixteen".