23155881180 has 96 divisors (see below), whose sum is σ = 66003517440. Its totient is φ = 6064581120.

The previous prime is 23155881167. The next prime is 23155881209. The reversal of 23155881180 is 8118855132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 892552 + ... + 918128.

It is an arithmetic number, because the mean of its divisors is an integer number (687536640).

Almost surely, 2^23155881180 is an apocalyptic number.

23155881180 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 23155881180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33001758720).

23155881180 is an abundant number, since it is smaller than the sum of its proper divisors (42847636260).

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

23155881180 is a wasteful number, since it uses less digits than its factorization.

23155881180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25859 (or 25857 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 42.

The spelling of 23155881180 in words is "twenty-three billion, one hundred fifty-five million, eight hundred eighty-one thousand, one hundred eighty".