23156964288 has 280 divisors, whose sum is σ = 71597926400. Its totient is φ = 7392176640.

The previous prime is 23156964283. The next prime is 23156964301. The reversal of 23156964288 is 88246965132.

23156964288 is a `hidden beast` number, since 2 + 31 + 569 + 6 + 42 + 8 + 8 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23156964283) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16551813 + ... + 16553211.

It is an arithmetic number, because the mean of its divisors is an integer number (255706880).

Almost surely, 2^23156964288 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 23156964288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35798963200).

23156964288 is an abundant number, since it is smaller than the sum of its proper divisors (48440962112).

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

23156964288 is a wasteful number, since it uses less digits than its factorization.

23156964288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557 (or 1538 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The spelling of 23156964288 in words is "twenty-three billion, one hundred fifty-six million, nine hundred sixty-four thousand, two hundred eighty-eight".