56238633136 has 80 divisors (see below), whose sum is σ = 128668272640. Its totient is φ = 23302494720.

The previous prime is 56238633097. The next prime is 56238633163. The reversal of 56238633136 is 63133683265.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3912715 + ... + 3927061.

It is an arithmetic number, because the mean of its divisors is an integer number (1608353408).

Almost surely, 2^56238633136 is an apocalyptic number.

56238633136 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56238633136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64334136320).

56238633136 is an abundant number, since it is smaller than the sum of its proper divisors (72429639504).

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

56238633136 is a wasteful number, since it uses less digits than its factorization.

56238633136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15522 (or 15516 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 46.

The spelling of 56238633136 in words is "fifty-six billion, two hundred thirty-eight million, six hundred thirty-three thousand, one hundred thirty-six".