12664506 has 8 divisors (see below), whose sum is σ = 25329024. Its totient is φ = 4221500.

The previous prime is 12664501. The next prime is 12664511. The reversal of 12664506 is 60546621.

It is an interprime number because it is at equal distance from previous prime (12664501) and next prime (12664511).

It is a sphenic number, since it is the product of 3 distinct primes.

12664506 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12664501) 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 3 ways as a sum of consecutive naturals, for example, 1055370 + ... + 1055381.

It is an arithmetic number, because the mean of its divisors is an integer number (3166128).

Almost surely, 2^12664506 is an apocalyptic number.

12664506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12664506 is a wasteful number, since it uses less digits than its factorization.

12664506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110756.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 12664506 is about 3558.7225236031. The cubic root of 12664506 is about 233.0931001401.

The spelling of 12664506 in words is "twelve million, six hundred sixty-four thousand, five hundred six".