23156425968 has 120 divisors (see below), whose sum is σ = 68587114608. Its totient is φ = 6705893376.

The previous prime is 23156425937. The next prime is 23156426063. The reversal of 23156425968 is 86952465132.

It is a happy number.

It is a super-2 number, since 2×23156425968² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 23156425968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53946 + ... + 221862.

Almost surely, 2^23156425968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23156425968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34293557304).

23156425968 is an abundant number, since it is smaller than the sum of its proper divisors (45430688640).

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

23156425968 is a wasteful number, since it uses less digits than its factorization.

23156425968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167971 (or 167952 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 51.

The spelling of 23156425968 in words is "twenty-three billion, one hundred fifty-six million, four hundred twenty-five thousand, nine hundred sixty-eight".