11969823167 has 16 divisors (see below), whose sum is σ = 13047669600. Its totient is φ = 10937566080.

The previous prime is 11969823163. The next prime is 11969823191. The reversal of 11969823167 is 76132896911.

It is a cyclic number.

It is not a de Polignac number, because 11969823167 - 2² = 11969823163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11969823161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551933 + ... + 573209.

It is an arithmetic number, because the mean of its divisors is an integer number (815479350).

Almost surely, 2^11969823167 is an apocalyptic number.

11969823167 is a deficient number, since it is larger than the sum of its proper divisors (1077846433).

11969823167 is a wasteful number, since it uses less digits than its factorization.

11969823167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22346.

The product of its digits is 979776, while the sum is 53.

The spelling of 11969823167 in words is "eleven billion, nine hundred sixty-nine million, eight hundred twenty-three thousand, one hundred sixty-seven".