23181465168 has 160 divisors (see below), whose sum is σ = 67755484800. Its totient is φ = 7681910400.

The previous prime is 23181465089. The next prime is 23181465173. The reversal of 23181465168 is 86156418132.

23181465168 is a `hidden beast` number, since 2 + 3 + 181 + 465 + 1 + 6 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6261718 + ... + 6265418.

It is an arithmetic number, because the mean of its divisors is an integer number (423471780).

Almost surely, 2^23181465168 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 23181465168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33877742400).

23181465168 is an abundant number, since it is smaller than the sum of its proper divisors (44574019632).

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

23181465168 is an equidigital number, since it uses as much as digits as its factorization.

23181465168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909 (or 3885 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The spelling of 23181465168 in words is "twenty-three billion, one hundred eighty-one million, four hundred sixty-five thousand, one hundred sixty-eight".