111166645560 has 64 divisors (see below), whose sum is σ = 335899267200. Its totient is φ = 29431165056.

The previous prime is 111166645549. The next prime is 111166645573. The reversal of 111166645560 is 65546661111.

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, 3315654 + ... + 3349013.

It is an arithmetic number, because the mean of its divisors is an integer number (5248426050).

Almost surely, 2^111166645560 is an apocalyptic number.

111166645560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111166645560 is an abundant number, since it is smaller than the sum of its proper divisors (224732621640).

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

111166645560 is a wasteful number, since it uses less digits than its factorization.

111166645560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6664820 (or 6664816 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 111166645560 in words is "one hundred eleven billion, one hundred sixty-six million, six hundred forty-five thousand, five hundred sixty".