23686906664 has 16 divisors (see below), whose sum is σ = 44585766900. Its totient is φ = 11797368832.

The previous prime is 23686906637. The next prime is 23686906703. The reversal of 23686906664 is 46660968632.

It can be written as a sum of positive squares in 2 ways, for example, as 21260556100 + 2426350564 = 145810^2 + 49258^2 .

It is a super-2 number, since 2×23686906664² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5758379 + ... + 5762490.

Almost surely, 2^23686906664 is an apocalyptic number.

It is an amenable number.

23686906664 is a deficient number, since it is larger than the sum of its proper divisors (20898860236).

23686906664 is a wasteful number, since it uses less digits than its factorization.

23686906664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11521132 (or 11521128 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 56.

The spelling of 23686906664 in words is "twenty-three billion, six hundred eighty-six million, nine hundred six thousand, six hundred sixty-four".