18107664 has 40 divisors (see below), whose sum is σ = 46967232. Its totient is φ = 6011520.

The previous prime is 18107659. The next prime is 18107699. The reversal of 18107664 is 46670181.

It is a happy 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, 14322 + ... + 15534.

Almost surely, 2^18107664 is an apocalyptic number.

It is an amenable number.

18107664 is an abundant number, since it is smaller than the sum of its proper divisors (28859568).

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

18107664 is a wasteful number, since it uses less digits than its factorization.

18107664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535 (or 1529 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 18107664 is about 4255.3100944585. The cubic root of 18107664 is about 262.5956186803.

The spelling of 18107664 in words is "eighteen million, one hundred seven thousand, six hundred sixty-four".