23166445664 has 24 divisors (see below), whose sum is σ = 47591938800. Its totient is φ = 11079604096.

The previous prime is 23166445651. The next prime is 23166445667. The reversal of 23166445664 is 46654466132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23166445667) 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, 15737339 + ... + 15738810.

It is an arithmetic number, because the mean of its divisors is an integer number (1982997450).

Almost surely, 2^23166445664 is an apocalyptic number.

It is an amenable number.

23166445664 is an abundant number, since it is smaller than the sum of its proper divisors (24425493136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23166445664 is a wasteful number, since it uses less digits than its factorization.

23166445664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31476182 (or 31476174 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 47.

The spelling of 23166445664 in words is "twenty-three billion, one hundred sixty-six million, four hundred forty-five thousand, six hundred sixty-four".