23666611922 has 18 divisors (see below), whose sum is σ = 35756628687. Its totient is φ = 11748348000.

The previous prime is 23666611919. The next prime is 23666611937. The reversal of 23666611922 is 22911666632.

It can be written as a sum of positive squares in 5 ways, for example, as 5042278081 + 18624333841 = 71009^2 + 136471^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=108781.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 39378422 + ... + 39379022.

Almost surely, 2^23666611922 is an apocalyptic number.

23666611922 is a deficient number, since it is larger than the sum of its proper divisors (12090016765).

23666611922 is an frugal number, since it uses more digits than its factorization.

23666611922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566 (or 784 counting only the distinct ones).

The product of its digits is 279936, while the sum is 44.

The spelling of 23666611922 in words is "twenty-three billion, six hundred sixty-six million, six hundred eleven thousand, nine hundred twenty-two".