23672661440 has 112 divisors (see below), whose sum is σ = 58844931840. Its totient is φ = 9060311040.

The previous prime is 23672661433. The next prime is 23672661479. The reversal of 23672661440 is 4416627632.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 869474 + ... + 896286.

Almost surely, 2^23672661440 is an apocalyptic number.

23672661440 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 23672661440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29422465920).

23672661440 is an abundant number, since it is smaller than the sum of its proper divisors (35172270400).

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

23672661440 is a wasteful number, since it uses less digits than its factorization.

23672661440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26950 (or 26940 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 23672661440 in words is "twenty-three billion, six hundred seventy-two million, six hundred sixty-one thousand, four hundred forty".