23159033880 has 128 divisors (see below), whose sum is σ = 73252166400. Its totient is φ = 5841234432.

The previous prime is 23159033851. The next prime is 23159033881. The reversal of 23159033880 is 8833095132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23159033881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1458142 + ... + 1473938.

It is an arithmetic number, because the mean of its divisors is an integer number (572282550).

Almost surely, 2^23159033880 is an apocalyptic number.

23159033880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23159033880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36626083200).

23159033880 is an abundant number, since it is smaller than the sum of its proper divisors (50093132520).

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

23159033880 is a wasteful number, since it uses less digits than its factorization.

23159033880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16473 (or 16469 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 23159033880 in words is "twenty-three billion, one hundred fifty-nine million, thirty-three thousand, eight hundred eighty".