23157255296 has 128 divisors (see below), whose sum is σ = 56742975360. Its totient is φ = 9187246080.

The previous prime is 23157255281. The next prime is 23157255299. The reversal of 23157255296 is 69255275132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 23157255296.

It is not an unprimeable number, because it can be changed into a prime (23157255299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 916691 + ... + 941613.

It is an arithmetic number, because the mean of its divisors is an integer number (443304495).

Almost surely, 2^23157255296 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 23157255296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28371487680).

23157255296 is an abundant number, since it is smaller than the sum of its proper divisors (33585720064).

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

23157255296 is a wasteful number, since it uses less digits than its factorization.

23157255296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25022 (or 25010 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 47.

The spelling of 23157255296 in words is "twenty-three billion, one hundred fifty-seven million, two hundred fifty-five thousand, two hundred ninety-six".