12668136795 has 24 divisors (see below), whose sum is σ = 21960783936. Its totient is φ = 6755515008.

The previous prime is 12668136781. The next prime is 12668136799. The reversal of 12668136795 is 59763186621.

It is not a de Polignac number, because 12668136795 - 2¹⁶ = 12668071259 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12668136799) 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 23 ways as a sum of consecutive naturals, for example, 596479 + ... + 617351.

It is an arithmetic number, because the mean of its divisors is an integer number (915032664).

Almost surely, 2^12668136795 is an apocalyptic number.

12668136795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12668136795 is a deficient number, since it is larger than the sum of its proper divisors (9292647141).

12668136795 is a wasteful number, since it uses less digits than its factorization.

12668136795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34371 (or 34368 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 12668136795 in words is "twelve billion, six hundred sixty-eight million, one hundred thirty-six thousand, seven hundred ninety-five".