12664103512 has 16 divisors (see below), whose sum is σ = 23748579360. Its totient is φ = 6331149024.

The previous prime is 12664103509. The next prime is 12664103521. The reversal of 12664103512 is 21530146621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51243 + ... + 167194.

It is an arithmetic number, because the mean of its divisors is an integer number (1484286210).

Almost surely, 2^12664103512 is an apocalyptic number.

It is an amenable number.

12664103512 is a deficient number, since it is larger than the sum of its proper divisors (11084475848).

12664103512 is a wasteful number, since it uses less digits than its factorization.

12664103512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225690 (or 225686 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 12664103512 in words is "twelve billion, six hundred sixty-four million, one hundred three thousand, five hundred twelve".