12516620316 has 12 divisors (see below), whose sum is σ = 29205447432. Its totient is φ = 4172206768.

The previous prime is 12516620297. The next prime is 12516620323. The reversal of 12516620316 is 61302661521.

It is a tau number, because it is divible by the number of its divisors (12).

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, 521525835 + ... + 521525858.

It is an arithmetic number, because the mean of its divisors is an integer number (2433787286).

Almost surely, 2^12516620316 is an apocalyptic number.

It is an amenable number.

12516620316 is an abundant number, since it is smaller than the sum of its proper divisors (16688827116).

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

12516620316 is a wasteful number, since it uses less digits than its factorization.

12516620316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043051700 (or 1043051698 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 12516620316 in words is "twelve billion, five hundred sixteen million, six hundred twenty thousand, three hundred sixteen".