18114664 has 16 divisors (see below), whose sum is σ = 35061120. Its totient is φ = 8765040.

The previous prime is 18114641. The next prime is 18114671. The reversal of 18114664 is 46641181.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36274 + ... + 36769.

It is an arithmetic number, because the mean of its divisors is an integer number (2191320).

Almost surely, 2^18114664 is an apocalyptic number.

It is an amenable number.

18114664 is a deficient number, since it is larger than the sum of its proper divisors (16946456).

18114664 is a wasteful number, since it uses less digits than its factorization.

18114664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73080 (or 73076 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 18114664 is about 4256.1325167339. The cubic root of 18114664 is about 262.6294520987.

The spelling of 18114664 in words is "eighteen million, one hundred fourteen thousand, six hundred sixty-four".