12816660080 has 40 divisors (see below), whose sum is σ = 34055698272. Its totient is φ = 4394283264.

The previous prime is 12816660071. The next prime is 12816660133. The reversal of 12816660080 is 8006661821.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11442887 + ... + 11444006.

Almost surely, 2^12816660080 is an apocalyptic number.

12816660080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12816660080 is an abundant number, since it is smaller than the sum of its proper divisors (21239038192).

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

12816660080 is a wasteful number, since it uses less digits than its factorization.

12816660080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22886913 (or 22886907 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The spelling of 12816660080 in words is "twelve billion, eight hundred sixteen million, six hundred sixty thousand, eighty".