109187664 has 40 divisors (see below), whose sum is σ = 288633312. Its totient is φ = 35548800.

The previous prime is 109187653. The next prime is 109187671. The reversal of 109187664 is 466781901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24387 + ... + 28514.

Almost surely, 2^109187664 is an apocalyptic number.

It is an amenable number.

109187664 is an abundant number, since it is smaller than the sum of its proper divisors (179445648).

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

109187664 is a wasteful number, since it uses less digits than its factorization.

109187664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52955 (or 52949 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 109187664 is about 10449.2901194292. The cubic root of 109187664 is about 477.9596028021.

The spelling of 109187664 in words is "one hundred nine million, one hundred eighty-seven thousand, six hundred sixty-four".