56505157154988 has 12 divisors (see below), whose sum is σ = 131845366695000. Its totient is φ = 18835052384992.

The previous prime is 56505157154977. The next prime is 56505157155011. The reversal of 56505157154988 is 88945175150565.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2354381548113 + ... + 2354381548136.

It is an arithmetic number, because the mean of its divisors is an integer number (10987113891250).

Almost surely, 2^{56505157154988} is an apocalyptic number.

It is an amenable number.

56505157154988 is an abundant number, since it is smaller than the sum of its proper divisors (75340209540012).

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

56505157154988 is a wasteful number, since it uses less digits than its factorization.

56505157154988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4708763096256 (or 4708763096254 counting only the distinct ones).

The product of its (nonzero) digits is 302400000, while the sum is 69.

The spelling of 56505157154988 in words is "fifty-six trillion, five hundred five billion, one hundred fifty-seven million, one hundred fifty-four thousand, nine hundred eighty-eight".