23159749666 has 16 divisors (see below), whose sum is σ = 34832635200. Its totient is φ = 11548893168.

The previous prime is 23159749661. The next prime is 23159749673. The reversal of 23159749666 is 66694795132.

It is a super-2 number, since 2×23159749666² (a number of 22 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 23159749666.

It is not an unprimeable number, because it can be changed into a prime (23159749661) 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 7 ways as a sum of consecutive naturals, for example, 3630856 + ... + 3637228.

It is an arithmetic number, because the mean of its divisors is an integer number (2177039700).

Almost surely, 2^23159749666 is an apocalyptic number.

23159749666 is a deficient number, since it is larger than the sum of its proper divisors (11672885534).

23159749666 is a wasteful number, since it uses less digits than its factorization.

23159749666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10953.

The product of its digits is 14696640, while the sum is 58.

The spelling of 23159749666 in words is "twenty-three billion, one hundred fifty-nine million, seven hundred forty-nine thousand, six hundred sixty-six".