56599981632 has 112 divisors (see below), whose sum is σ = 166598396800. Its totient is φ = 18843425280.

The previous prime is 56599981589. The next prime is 56599981639. The reversal of 56599981632 is 23618999565.

56599981632 is a `hidden beast` number, since 5 + 6 + 599 + 9 + 8 + 1 + 6 + 32 = 666.

56599981632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 56599981632.

It is not an unprimeable number, because it can be changed into a prime (56599981639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1412757 + ... + 1452267.

Almost surely, 2^56599981632 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 56599981632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83299198400).

56599981632 is an abundant number, since it is smaller than the sum of its proper divisors (109998415168).

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

56599981632 is a wasteful number, since it uses less digits than its factorization.

56599981632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40361 (or 40345 counting only the distinct ones).

The product of its digits is 31492800, while the sum is 63.

The spelling of 56599981632 in words is "fifty-six billion, five hundred ninety-nine million, nine hundred eighty-one thousand, six hundred thirty-two".