11666223586 has 16 divisors (see below), whose sum is σ = 17744456448. Its totient is φ = 5751453600.

The previous prime is 11666223551. The next prime is 11666223593. The reversal of 11666223586 is 68532266611.

It is a super-2 number, since 2×11666223586² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560791 + ... + 581221.

It is an arithmetic number, because the mean of its divisors is an integer number (1109028528).

Almost surely, 2^11666223586 is an apocalyptic number.

11666223586 is a deficient number, since it is larger than the sum of its proper divisors (6078232862).

11666223586 is a wasteful number, since it uses less digits than its factorization.

11666223586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24417.

The product of its digits is 622080, while the sum is 46.

The spelling of 11666223586 in words is "eleven billion, six hundred sixty-six million, two hundred twenty-three thousand, five hundred eighty-six".