981160856579568 has 80 divisors (see below), whose sum is σ = 2896834239242496. Its totient is φ = 280324549271040.

The previous prime is 981160856579513. The next prime is 981160856579593. The reversal of 981160856579568 is 865975658061189.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is a congruent number.

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, 23856021 + ... + 50313332.

Almost surely, 2^{981160856579568} is an apocalyptic number.

It is an amenable number.

981160856579568 is an abundant number, since it is smaller than the sum of its proper divisors (1915673382662928).

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

981160856579568 is a wasteful number, since it uses less digits than its factorization.

981160856579568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74208742 (or 74208736 counting only the distinct ones).

The product of its (nonzero) digits is 7838208000, while the sum is 84.

The spelling of 981160856579568 in words is "nine hundred eighty-one trillion, one hundred sixty billion, eight hundred fifty-six million, five hundred seventy-nine thousand, five hundred sixty-eight".