56161530798 has 64 divisors (see below), whose sum is σ = 119112215040. Its totient is φ = 17603955072.

The previous prime is 56161530781. The next prime is 56161530809. The reversal of 56161530798 is 89703516165.

It is a self number, because there is not a number n which added to its sum of digits gives 56161530798.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14335936 + ... + 14339852.

It is an arithmetic number, because the mean of its divisors is an integer number (1861128360).

Almost surely, 2^56161530798 is an apocalyptic number.

56161530798 is an abundant number, since it is smaller than the sum of its proper divisors (62950684242).

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

56161530798 is a wasteful number, since it uses less digits than its factorization.

56161530798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4841.

The product of its (nonzero) digits is 1360800, while the sum is 51.

The spelling of 56161530798 in words is "fifty-six billion, one hundred sixty-one million, five hundred thirty thousand, seven hundred ninety-eight".