11664518 has 16 divisors (see below), whose sum is σ = 18630000. Its totient is φ = 5461632.

The previous prime is 11664517. The next prime is 11664529. The reversal of 11664518 is 81546611.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11664511) 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, 1658 + ... + 5106.

It is an arithmetic number, because the mean of its divisors is an integer number (1164375).

Almost surely, 2^11664518 is an apocalyptic number.

11664518 is a deficient number, since it is larger than the sum of its proper divisors (6965482).

11664518 is a wasteful number, since it uses less digits than its factorization.

11664518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559.

The product of its digits is 5760, while the sum is 32.

The square root of 11664518 is about 3415.3357082430. The cubic root of 11664518 is about 226.7891461284.

The spelling of 11664518 in words is "eleven million, six hundred sixty-four thousand, five hundred eighteen".