12664118 has 4 divisors (see below), whose sum is σ = 18996180. Its totient is φ = 6332058.

The previous prime is 12664117. The next prime is 12664129. The reversal of 12664118 is 81146621.

12664118 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12664117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3166028 + ... + 3166031.

It is an arithmetic number, because the mean of its divisors is an integer number (4749045).

Almost surely, 2^12664118 is an apocalyptic number.

12664118 is a deficient number, since it is larger than the sum of its proper divisors (6332062).

12664118 is an equidigital number, since it uses as much as digits as its factorization.

12664118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6332061.

The product of its digits is 2304, while the sum is 29.

The square root of 12664118 is about 3558.6680092417. The cubic root of 12664118 is about 233.0907197065.

The spelling of 12664118 in words is "twelve million, six hundred sixty-four thousand, one hundred eighteen".