23161886880 has 384 divisors, whose sum is σ = 84025589760. Its totient is φ = 5308047360.

The previous prime is 23161886821. The next prime is 23161886897. The reversal of 23161886880 is 8868816132.

It is a super-2 number, since 2×23161886880² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10807089 + ... + 10809231.

It is an arithmetic number, because the mean of its divisors is an integer number (218816640).

Almost surely, 2^23161886880 is an apocalyptic number.

23161886880 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 23161886880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42012794880).

23161886880 is an abundant number, since it is smaller than the sum of its proper divisors (60863702880).

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

23161886880 is a wasteful number, since it uses less digits than its factorization.

23161886880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284 (or 2276 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 51.

The spelling of 23161886880 in words is "twenty-three billion, one hundred sixty-one million, eight hundred eighty-six thousand, eight hundred eighty".