12664654 has 12 divisors (see below), whose sum is σ = 19476792. Its totient is φ = 6176240.

The previous prime is 12664607. The next prime is 12664669. The reversal of 12664654 is 45646621.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1479 + ... + 5245.

It is an arithmetic number, because the mean of its divisors is an integer number (1623066).

Almost surely, 2^12664654 is an apocalyptic number.

12664654 is a deficient number, since it is larger than the sum of its proper divisors (6812138).

12664654 is an equidigital number, since it uses as much as digits as its factorization.

12664654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3851 (or 3810 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 12664654 is about 3558.7433175209. The cubic root of 12664654 is about 233.0940081277.

The spelling of 12664654 in words is "twelve million, six hundred sixty-four thousand, six hundred fifty-four".