11664556614 has 12 divisors (see below), whose sum is σ = 25273206036. Its totient is φ = 3888185532.

The previous prime is 11664556609. The next prime is 11664556691. The reversal of 11664556614 is 41665546611.

11664556614 is a `hidden beast` number, since 1 + 16 + 64 + 5 + 566 + 14 = 666.

It is a super-2 number, since 2×11664556614² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11664556614.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 324015444 + ... + 324015479.

It is an arithmetic number, because the mean of its divisors is an integer number (2106100503).

Almost surely, 2^11664556614 is an apocalyptic number.

11664556614 is an abundant number, since it is smaller than the sum of its proper divisors (13608649422).

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

11664556614 is a wasteful number, since it uses less digits than its factorization.

11664556614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648030931 (or 648030928 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The spelling of 11664556614 in words is "eleven billion, six hundred sixty-four million, five hundred fifty-six thousand, six hundred fourteen".