56105055555100 has 72 divisors (see below), whose sum is σ = 124181100126608. Its totient is φ = 21996119116800.

The previous prime is 56105055555061. The next prime is 56105055555137. The reversal of 56105055555100 is 155555050165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14523789 + ... + 17976388.

Almost surely, 2^{56105055555100} is an apocalyptic number.

56105055555100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56105055555100 is an abundant number, since it is smaller than the sum of its proper divisors (68076044571508).

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

56105055555100 is a wasteful number, since it uses less digits than its factorization.

56105055555100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32500535 (or 32500528 counting only the distinct ones).

The product of its (nonzero) digits is 468750, while the sum is 43.

The spelling of 56105055555100 in words is "fifty-six trillion, one hundred five billion, fifty-five million, five hundred fifty-five thousand, one hundred".