11666568 has 32 divisors (see below), whose sum is σ = 29570400. Its totient is φ = 3835008.

The previous prime is 11666549. The next prime is 11666579. The reversal of 11666568 is 86566611.

It is a super-2 number, since 2×11666568² = 272217617797248, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1578 + ... + 5081.

It is an arithmetic number, because the mean of its divisors is an integer number (924075).

Almost surely, 2^11666568 is an apocalyptic number.

It is an amenable number.

11666568 is an abundant number, since it is smaller than the sum of its proper divisors (17903832).

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

11666568 is a wasteful number, since it uses less digits than its factorization.

11666568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6741 (or 6737 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 11666568 is about 3415.6358119682. The cubic root of 11666568 is about 226.8024311613.

The spelling of 11666568 in words is "eleven million, six hundred sixty-six thousand, five hundred sixty-eight".