12566792320 has 256 divisors, whose sum is σ = 31955212800. Its totient is φ = 4720951296.

The previous prime is 12566792297. The next prime is 12566792333. The reversal of 12566792320 is 2329766521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129554512 + ... + 129554608.

It is an arithmetic number, because the mean of its divisors is an integer number (124825050).

Almost surely, 2^12566792320 is an apocalyptic number.

12566792320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12566792320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15977606400).

12566792320 is an abundant number, since it is smaller than the sum of its proper divisors (19388420480).

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

12566792320 is an equidigital number, since it uses as much as digits as its factorization.

12566792320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 12566792320 in words is "twelve billion, five hundred sixty-six million, seven hundred ninety-two thousand, three hundred twenty".