11666372 has 24 divisors (see below), whose sum is σ = 20962200. Its totient is φ = 5679360.

The previous prime is 11666371. The next prime is 11666383. The reversal of 11666372 is 27366611.

It can be written as a sum of positive squares in 4 ways, for example, as 749956 + 10916416 = 866^2 + 3304^2 .

It is a super-2 number, since 2×11666372² = 272208471284768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11666371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33254 + ... + 33602.

It is an arithmetic number, because the mean of its divisors is an integer number (873425).

Almost surely, 2^11666372 is an apocalyptic number.

It is an amenable number.

11666372 is a deficient number, since it is larger than the sum of its proper divisors (9295828).

11666372 is a wasteful number, since it uses less digits than its factorization.

11666372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 549 counting only the distinct ones).

The product of its digits is 9072, while the sum is 32.

The square root of 11666372 is about 3415.6071202643. The cubic root of 11666372 is about 226.8011610499.

The spelling of 11666372 in words is "eleven million, six hundred sixty-six thousand, three hundred seventy-two".