11516564466 has 24 divisors (see below), whose sum is σ = 27220971024. Its totient is φ = 3489867960.

The previous prime is 11516564453. The next prime is 11516564467. The reversal of 11516564466 is 66446561511.

11516564466 is a `hidden beast` number, since 1 + 15 + 16 + 564 + 4 + 66 = 666.

It is not an unprimeable number, because it can be changed into a prime (11516564467) 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 11 ways as a sum of consecutive naturals, for example, 29082036 + ... + 29082431.

It is an arithmetic number, because the mean of its divisors is an integer number (1134207126).

Almost surely, 2^11516564466 is an apocalyptic number.

11516564466 is an abundant number, since it is smaller than the sum of its proper divisors (15704406558).

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

11516564466 is a wasteful number, since it uses less digits than its factorization.

11516564466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58164486 (or 58164483 counting only the distinct ones).

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

The spelling of 11516564466 in words is "eleven billion, five hundred sixteen million, five hundred sixty-four thousand, four hundred sixty-six".