56965321216 has 80 divisors (see below), whose sum is σ = 123318116064. Its totient is φ = 26183614464.

The previous prime is 56965321211. The next prime is 56965321223. The reversal of 56965321216 is 61212356965.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (56965321211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298171 + ... + 450373.

Almost surely, 2^56965321216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56965321216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61659058032).

56965321216 is an abundant number, since it is smaller than the sum of its proper divisors (66352794848).

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

56965321216 is a wasteful number, since it uses less digits than its factorization.

56965321216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152281 (or 152265 counting only the distinct ones).

The product of its digits is 583200, while the sum is 46.

The spelling of 56965321216 in words is "fifty-six billion, nine hundred sixty-five million, three hundred twenty-one thousand, two hundred sixteen".