23156488380 has 24 divisors (see below), whose sum is σ = 64838167632. Its totient is φ = 6175063552.

The previous prime is 23156488373. The next prime is 23156488417. The reversal of 23156488380 is 8388465132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192970677 + ... + 192970796.

It is an arithmetic number, because the mean of its divisors is an integer number (2701590318).

Almost surely, 2^23156488380 is an apocalyptic number.

23156488380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23156488380 is an abundant number, since it is smaller than the sum of its proper divisors (41681679252).

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

23156488380 is a wasteful number, since it uses less digits than its factorization.

23156488380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385941485 (or 385941483 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 23156488380 in words is "twenty-three billion, one hundred fifty-six million, four hundred eighty-eight thousand, three hundred eighty".