11666666372 has 24 divisors (see below), whose sum is σ = 21665448000. Its totient is φ = 5485136096.

The previous prime is 11666666339. The next prime is 11666666437. The reversal of 11666666372 is 27366666611.

It is a happy number.

11666666372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11666666372² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11666666372.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1069247 + ... + 1080102.

It is an arithmetic number, because the mean of its divisors is an integer number (902727000).

Almost surely, 2^11666666372 is an apocalyptic number.

It is an amenable number.

11666666372 is a deficient number, since it is larger than the sum of its proper divisors (9998781628).

11666666372 is a wasteful number, since it uses less digits than its factorization.

11666666372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149435 (or 2149433 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 50.

The spelling of 11666666372 in words is "eleven billion, six hundred sixty-six million, six hundred sixty-six thousand, three hundred seventy-two".