12917665700 has 36 divisors (see below), whose sum is σ = 28788946452. Its totient is φ = 5027414400.

The previous prime is 12917665699. The next prime is 12917665703. The reversal of 12917665700 is 756671921.

It can be written as a sum of positive squares in 6 ways, for example, as 43586404 + 12874079296 = 6602^2 + 113464^2 .

It is not an unprimeable number, because it can be changed into a prime (12917665703) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 1741931 + ... + 1749330.

It is an arithmetic number, because the mean of its divisors is an integer number (799692957).

Almost surely, 2^12917665700 is an apocalyptic number.

12917665700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12917665700 is an abundant number, since it is smaller than the sum of its proper divisors (15871280752).

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

12917665700 is a wasteful number, since it uses less digits than its factorization.

12917665700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491312 (or 3491305 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 44.

The spelling of 12917665700 in words is "twelve billion, nine hundred seventeen million, six hundred sixty-five thousand, seven hundred".