11665608 has 32 divisors (see below), whose sum is σ = 29470560. Its totient is φ = 3847680.

The previous prime is 11665603. The next prime is 11665613. The reversal of 11665608 is 80656611.

It is an interprime number because it is at equal distance from previous prime (11665603) and next prime (11665613).

It is not an unprimeable number, because it can be changed into a prime (11665603) by changing a digit.

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, 178 + ... + 4833.

It is an arithmetic number, because the mean of its divisors is an integer number (920955).

Almost surely, 2^11665608 is an apocalyptic number.

It is an amenable number.

11665608 is an abundant number, since it is smaller than the sum of its proper divisors (17804952).

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

11665608 is a wasteful number, since it uses less digits than its factorization.

11665608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5117 (or 5113 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 11665608 is about 3415.4952788725. The cubic root of 11665608 is about 226.7962100714.

The spelling of 11665608 in words is "eleven million, six hundred sixty-five thousand, six hundred eight".