111660516516 has 12 divisors (see below), whose sum is σ = 260541205232. Its totient is φ = 37220172168.

The previous prime is 111660516481. The next prime is 111660516521. The reversal of 111660516516 is 615615066111.

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, 4652521510 + ... + 4652521533.

Almost surely, 2^111660516516 is an apocalyptic number.

It is an amenable number.

111660516516 is an abundant number, since it is smaller than the sum of its proper divisors (148880688716).

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

111660516516 is a wasteful number, since it uses less digits than its factorization.

111660516516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9305043050 (or 9305043048 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 39.

The spelling of 111660516516 in words is "one hundred eleven billion, six hundred sixty million, five hundred sixteen thousand, five hundred sixteen".