128560970916 has 81 divisors (see below), whose sum is σ = 378074760609. Its totient is φ = 36727403328.

The previous prime is 128560970861. The next prime is 128560970933. The reversal of 128560970916 is 619079065821.

The square root of 128560970916 is 358554.

It is a perfect power (a square), and thus also a powerful number.

128560970916 is a `hidden beast` number, since 1 + 2 + 8 + 560 + 9 + 70 + 9 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 113602702500 + 14958268416 = 337050^2 + 122304^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15055000 + ... + 15063536.

Almost surely, 2^128560970916 is an apocalyptic number.

128560970916 is the 358554-th square number.

It is an amenable number.

128560970916 is an abundant number, since it is smaller than the sum of its proper divisors (249513789693).

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

128560970916 is an frugal number, since it uses more digits than its factorization.

128560970916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17098 (or 8549 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 128560970916 in words is "one hundred twenty-eight billion, five hundred sixty million, nine hundred seventy thousand, nine hundred sixteen".