111947664 has 40 divisors (see below), whose sum is σ = 289852480. Its totient is φ = 37231488.

The previous prime is 111947663. The next prime is 111947701. The reversal of 111947664 is 466749111.

It is not an unprimeable number, because it can be changed into a prime (111947663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20982 + ... + 25770.

It is an arithmetic number, because the mean of its divisors is an integer number (7246312).

Almost surely, 2^111947664 is an apocalyptic number.

It is an amenable number.

111947664 is an abundant number, since it is smaller than the sum of its proper divisors (177904816).

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

111947664 is a wasteful number, since it uses less digits than its factorization.

111947664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5287 (or 5281 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 111947664 is about 10580.5323117507. The cubic root of 111947664 is about 481.9533594672.

The spelling of 111947664 in words is "one hundred eleven million, nine hundred forty-seven thousand, six hundred sixty-four".