56009999999980 has 48 divisors (see below), whose sum is σ = 126680464149120. Its totient is φ = 20678706010368.

The previous prime is 56009999999977. The next prime is 56010000000077. The reversal of 56009999999980 is 8999999990065.

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, 7121620 + ... + 12756859.

It is an arithmetic number, because the mean of its divisors is an integer number (2639176336440).

Almost surely, 2^{56009999999980} is an apocalyptic number.

It is an amenable number.

56009999999980 is an abundant number, since it is smaller than the sum of its proper divisors (70670464149140).

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

56009999999980 is a wasteful number, since it uses less digits than its factorization.

56009999999980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19889338 (or 19889336 counting only the distinct ones).

The product of its (nonzero) digits is 10331213040, while the sum is 91.

The spelling of 56009999999980 in words is "fifty-six trillion, nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred eighty".