11665712 has 20 divisors (see below), whose sum is σ = 22784256. Its totient is φ = 5785920.

The previous prime is 11665699. The next prime is 11665739. The reversal of 11665712 is 21756611.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 839 + ... + 4902.

Almost surely, 2^11665712 is an apocalyptic number.

It is an amenable number.

11665712 is a deficient number, since it is larger than the sum of its proper divisors (11118544).

11665712 is a wasteful number, since it uses less digits than its factorization.

11665712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5876 (or 5870 counting only the distinct ones).

The product of its digits is 2520, while the sum is 29.

The square root of 11665712 is about 3415.5105035704. The cubic root of 11665712 is about 226.7968840393.

The spelling of 11665712 in words is "eleven million, six hundred sixty-five thousand, seven hundred twelve".