56864566016 has 72 divisors (see below), whose sum is σ = 118171366320. Its totient is φ = 27276447744.

The previous prime is 56864565991. The next prime is 56864566021. The reversal of 56864566016 is 61066546865.

It is a super-2 number, since 2×56864566016² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1141175 + ... + 1189961.

Almost surely, 2^56864566016 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 56864566016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59085683160).

56864566016 is an abundant number, since it is smaller than the sum of its proper divisors (61306800304).

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

56864566016 is a wasteful number, since it uses less digits than its factorization.

56864566016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48989 (or 48975 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 53.

The spelling of 56864566016 in words is "fifty-six billion, eight hundred sixty-four million, five hundred sixty-six thousand, sixteen".