23661339166 has 32 divisors (see below), whose sum is σ = 36640512000. Its totient is φ = 11455342080.

The previous prime is 23661339151. The next prime is 23661339167. The reversal of 23661339166 is 66193316632.

It is a super-2 number, since 2×23661339166² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23661339167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2048355 + ... + 2059873.

It is an arithmetic number, because the mean of its divisors is an integer number (1145016000).

Almost surely, 2^23661339166 is an apocalyptic number.

23661339166 is a deficient number, since it is larger than the sum of its proper divisors (12979172834).

23661339166 is a wasteful number, since it uses less digits than its factorization.

23661339166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11844.

The product of its digits is 629856, while the sum is 46.

The spelling of 23661339166 in words is "twenty-three billion, six hundred sixty-one million, three hundred thirty-nine thousand, one hundred sixty-six".