56533577568 has 96 divisors (see below), whose sum is σ = 159872350176. Its totient is φ = 17388822528.

The previous prime is 56533577567. The next prime is 56533577579. The reversal of 56533577568 is 86577533565.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56533577567) by changing a digit.

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, 4607730 + ... + 4619982.

It is an arithmetic number, because the mean of its divisors is an integer number (1665336981).

Almost surely, 2^56533577568 is an apocalyptic number.

It is an amenable number.

56533577568 is an abundant number, since it is smaller than the sum of its proper divisors (103338772608).

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

56533577568 is a wasteful number, since it uses less digits than its factorization.

56533577568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15976 (or 15968 counting only the distinct ones).

The product of its digits is 79380000, while the sum is 60.

The spelling of 56533577568 in words is "fifty-six billion, five hundred thirty-three million, five hundred seventy-seven thousand, five hundred sixty-eight".