12167999994 has 32 divisors (see below), whose sum is σ = 25425031680. Its totient is φ = 3874924592.

The previous prime is 12167999993. The next prime is 12168000011. The reversal of 12167999994 is 49999976121.

It is not an unprimeable number, because it can be changed into a prime (12167999993) 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 15 ways as a sum of consecutive naturals, for example, 60817 + ... + 167435.

It is an arithmetic number, because the mean of its divisors is an integer number (794532240).

Almost surely, 2^12167999994 is an apocalyptic number.

12167999994 is an abundant number, since it is smaller than the sum of its proper divisors (13257031686).

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

12167999994 is a wasteful number, since it uses less digits than its factorization.

12167999994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107474.

The product of its digits is 19840464, while the sum is 66.

The spelling of 12167999994 in words is "twelve billion, one hundred sixty-seven million, nine hundred ninety-nine thousand, nine hundred ninety-four".