11943456164 has 24 divisors (see below), whose sum is σ = 22759766400. Its totient is φ = 5462341920.

The previous prime is 11943456163. The next prime is 11943456179. The reversal of 11943456164 is 46165434911.

It is a super-2 number, since 2×11943456164² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11943456163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2707292 + ... + 2711699.

It is an arithmetic number, because the mean of its divisors is an integer number (948323600).

Almost surely, 2^11943456164 is an apocalyptic number.

It is an amenable number.

11943456164 is a deficient number, since it is larger than the sum of its proper divisors (10816310236).

11943456164 is a wasteful number, since it uses less digits than its factorization.

11943456164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5419043 (or 5419041 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The spelling of 11943456164 in words is "eleven billion, nine hundred forty-three million, four hundred fifty-six thousand, one hundred sixty-four".