11666722379 has 16 divisors (see below), whose sum is σ = 13309414272. Its totient is φ = 10131084288.

The previous prime is 11666722369. The next prime is 11666722387. The reversal of 11666722379 is 97322766611.

11666722379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-11666722379 is a prime.

It is a super-2 number, since 2×11666722379² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11666722339) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 515567 + ... + 537719.

It is an arithmetic number, because the mean of its divisors is an integer number (831838392).

Almost surely, 2^11666722379 is an apocalyptic number.

11666722379 is a deficient number, since it is larger than the sum of its proper divisors (1642691893).

11666722379 is a wasteful number, since it uses less digits than its factorization.

11666722379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24566.

The product of its digits is 1143072, while the sum is 50.

The spelling of 11666722379 in words is "eleven billion, six hundred sixty-six million, seven hundred twenty-two thousand, three hundred seventy-nine".