56536699180 has 48 divisors (see below), whose sum is σ = 129478446720. Its totient is φ = 20610839808.

The previous prime is 56536699157. The next prime is 56536699183. The reversal of 56536699180 is 8199663565.

It is a Smith number, since the sum of its digits (58) 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 (56536699183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1355719 + ... + 1396798.

It is an arithmetic number, because the mean of its divisors is an integer number (2697467640).

Almost surely, 2^56536699180 is an apocalyptic number.

It is an amenable number.

56536699180 is an abundant number, since it is smaller than the sum of its proper divisors (72941747540).

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

56536699180 is a wasteful number, since it uses less digits than its factorization.

56536699180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752618 (or 2752616 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 58.

The spelling of 56536699180 in words is "fifty-six billion, five hundred thirty-six million, six hundred ninety-nine thousand, one hundred eighty".