23491568168 has 16 divisors (see below), whose sum is σ = 44048854080. Its totient is φ = 11745207088.

The previous prime is 23491568161. The next prime is 23491568203. The reversal of 23491568168 is 86186519432.

It is not an unprimeable number, because it can be changed into a prime (23491568161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136355 + ... + 256077.

It is an arithmetic number, because the mean of its divisors is an integer number (2753053380).

Almost surely, 2^23491568168 is an apocalyptic number.

It is an amenable number.

23491568168 is a deficient number, since it is larger than the sum of its proper divisors (20557285912).

23491568168 is a wasteful number, since it uses less digits than its factorization.

23491568168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144256 (or 144252 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 53.

The spelling of 23491568168 in words is "twenty-three billion, four hundred ninety-one million, five hundred sixty-eight thousand, one hundred sixty-eight".