23183646720 has 448 divisors, whose sum is σ = 83495107584. Its totient is φ = 5449973760.

The previous prime is 23183646653. The next prime is 23183646737. The reversal of 23183646720 is 2764638132.

It is a congruent number.

It is an unprimeable number.

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, 36740805 + ... + 36741435.

It is an arithmetic number, because the mean of its divisors is an integer number (186373008).

Almost surely, 2^23183646720 is an apocalyptic number.

23183646720 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 23183646720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41747553792).

23183646720 is an abundant number, since it is smaller than the sum of its proper divisors (60311460864).

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

23183646720 is a wasteful number, since it uses less digits than its factorization.

23183646720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

It can be divided in two parts, 23183 and 646720, that added together give a triangular number (669903 = T₁₁₅₇).

The spelling of 23183646720 in words is "twenty-three billion, one hundred eighty-three million, six hundred forty-six thousand, seven hundred twenty".