12656199160 has 128 divisors (see below), whose sum is σ = 31701196800. Its totient is φ = 4509020160.

The previous prime is 12656199131. The next prime is 12656199161. The reversal of 12656199160 is 6199165621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12656199160.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12656199161) 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 31 ways as a sum of consecutive naturals, for example, 4394601 + ... + 4397479.

It is an arithmetic number, because the mean of its divisors is an integer number (247665600).

Almost surely, 2^12656199160 is an apocalyptic number.

12656199160 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 12656199160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15850598400).

12656199160 is an abundant number, since it is smaller than the sum of its proper divisors (19044997640).

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

12656199160 is a wasteful number, since it uses less digits than its factorization.

12656199160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3101 (or 3097 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 46.

The spelling of 12656199160 in words is "twelve billion, six hundred fifty-six million, one hundred ninety-nine thousand, one hundred sixty".