11665044 has 36 divisors (see below), whose sum is σ = 29672916. Its totient is φ = 3863808.

The previous prime is 11665039. The next prime is 11665057. The reversal of 11665044 is 44056611.

11665044 is a `hidden beast` number, since 1 + 1 + 6 + 650 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5008644 + 6656400 = 2238^2 + 2580^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 11664999 and 11665017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5292 + ... + 7164.

Almost surely, 2^11665044 is an apocalyptic number.

It is an amenable number.

11665044 is an abundant number, since it is smaller than the sum of its proper divisors (18007872).

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

11665044 is a wasteful number, since it uses less digits than its factorization.

11665044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056 (or 2051 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 11665044 is about 3415.4127129821. The cubic root of 11665044 is about 226.7925550219.

The spelling of 11665044 in words is "eleven million, six hundred sixty-five thousand, forty-four".