23156733712 has 80 divisors (see below), whose sum is σ = 52463106432. Its totient is φ = 9696061440.

The previous prime is 23156733673. The next prime is 23156733737. The reversal of 23156733712 is 21733765132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1422483 + ... + 1438669.

Almost surely, 2^23156733712 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 23156733712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26231553216).

23156733712 is an abundant number, since it is smaller than the sum of its proper divisors (29306372720).

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

23156733712 is a wasteful number, since it uses less digits than its factorization.

23156733712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16496 (or 16490 counting only the distinct ones).

The product of its digits is 158760, while the sum is 40.

The spelling of 23156733712 in words is "twenty-three billion, one hundred fifty-six million, seven hundred thirty-three thousand, seven hundred twelve".