111616156666 has 32 divisors (see below), whose sum is σ = 191926350720. Its totient is φ = 47689526976.

The previous prime is 111616156651. The next prime is 111616156703. The reversal of 111616156666 is 666651616111.

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, 16133040 + ... + 16139956.

It is an arithmetic number, because the mean of its divisors is an integer number (5997698460).

Almost surely, 2^111616156666 is an apocalyptic number.

111616156666 is a deficient number, since it is larger than the sum of its proper divisors (80310194054).

111616156666 is a wasteful number, since it uses less digits than its factorization.

111616156666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10278.

The product of its digits is 233280, while the sum is 46.

The spelling of 111616156666 in words is "one hundred eleven billion, six hundred sixteen million, one hundred fifty-six thousand, six hundred sixty-six".