12664625228 has 6 divisors (see below), whose sum is σ = 22163094156. Its totient is φ = 6332312612.

The previous prime is 12664625203. The next prime is 12664625243. The reversal of 12664625228 is 82252646621.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1583078150 + ... + 1583078157.

It is an arithmetic number, because the mean of its divisors is an integer number (3693849026).

Almost surely, 2^12664625228 is an apocalyptic number.

It is an amenable number.

12664625228 is a deficient number, since it is larger than the sum of its proper divisors (9498468928).

12664625228 is a wasteful number, since it uses less digits than its factorization.

12664625228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3166156311 (or 3166156309 counting only the distinct ones).

The product of its digits is 552960, while the sum is 44.

The spelling of 12664625228 in words is "twelve billion, six hundred sixty-four million, six hundred twenty-five thousand, two hundred twenty-eight".