56446132880 has 20 divisors (see below), whose sum is σ = 131237259132. Its totient is φ = 22578453120.

The previous prime is 56446132877. The next prime is 56446132921. The reversal of 56446132880 is 8823164465.

It can be written as a sum of positive squares in 2 ways, for example, as 32858087824 + 23588045056 = 181268^2 + 153584^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352788251 + ... + 352788410.

Almost surely, 2^56446132880 is an apocalyptic number.

It is an amenable number.

56446132880 is an abundant number, since it is smaller than the sum of its proper divisors (74791126252).

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

56446132880 is a wasteful number, since it uses less digits than its factorization.

56446132880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705576674 (or 705576668 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 47.

The spelling of 56446132880 in words is "fifty-six billion, four hundred forty-six million, one hundred thirty-two thousand, eight hundred eighty".