12816129968 has 20 divisors (see below), whose sum is σ = 24848745888. Its totient is φ = 6403550400.

The previous prime is 12816129961. The next prime is 12816129971. The reversal of 12816129968 is 86992161821.

It is not an unprimeable number, because it can be changed into a prime (12816129961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258683 + ... + 304218.

Almost surely, 2^12816129968 is an apocalyptic number.

It is an amenable number.

12816129968 is a deficient number, since it is larger than the sum of its proper divisors (12032615920).

12816129968 is a wasteful number, since it uses less digits than its factorization.

12816129968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564332 (or 564326 counting only the distinct ones).

The product of its digits is 746496, while the sum is 53.

The spelling of 12816129968 in words is "twelve billion, eight hundred sixteen million, one hundred twenty-nine thousand, nine hundred sixty-eight".