11663444 has 24 divisors (see below), whose sum is σ = 22347528. Its totient is φ = 5293440.

The previous prime is 11663437. The next prime is 11663489. The reversal of 11663444 is 44436611.

11663444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 35344 + 11628100 = 188^2 + 3410^2 .

It is a super-2 number, since 2×11663444² = 272071851882272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334 + ... + 5010.

It is an arithmetic number, because the mean of its divisors is an integer number (931147).

Almost surely, 2^11663444 is an apocalyptic number.

It is an amenable number.

11663444 is a deficient number, since it is larger than the sum of its proper divisors (10684084).

11663444 is a wasteful number, since it uses less digits than its factorization.

11663444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755 (or 3753 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 11663444 is about 3415.1784726424. The cubic root of 11663444 is about 226.7821854459.

The spelling of 11663444 in words is "eleven million, six hundred sixty-three thousand, four hundred forty-four".