111168660 has 48 divisors (see below), whose sum is σ = 324809856. Its totient is φ = 28355712.

The previous prime is 111168643. The next prime is 111168689. The reversal of 111168660 is 66861111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 38899 + ... + 41658.

It is an arithmetic number, because the mean of its divisors is an integer number (6766872).

Almost surely, 2^111168660 is an apocalyptic number.

111168660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111168660 is an abundant number, since it is smaller than the sum of its proper divisors (213641196).

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

111168660 is a wasteful number, since it uses less digits than its factorization.

111168660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80592 (or 80590 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 111168660 is about 10543.6549640056. The cubic root of 111168660 is about 480.8328423039.

The spelling of 111168660 in words is "one hundred eleven million, one hundred sixty-eight thousand, six hundred sixty".