56643336156 has 48 divisors (see below), whose sum is σ = 144351567360. Its totient is φ = 17144584320.

The previous prime is 56643336119. The next prime is 56643336179. The reversal of 56643336156 is 65163334665.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 137236 + ... + 363483.

It is an arithmetic number, because the mean of its divisors is an integer number (3007324320).

Almost surely, 2^56643336156 is an apocalyptic number.

It is an amenable number.

56643336156 is an abundant number, since it is smaller than the sum of its proper divisors (87708231204).

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

56643336156 is a wasteful number, since it uses less digits than its factorization.

56643336156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501594 (or 501592 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 48.

The spelling of 56643336156 in words is "fifty-six billion, six hundred forty-three million, three hundred thirty-six thousand, one hundred fifty-six".