23616553240 has 32 divisors (see below), whose sum is σ = 60728280480. Its totient is φ = 8097103872.

The previous prime is 23616553199. The next prime is 23616553283. The reversal of 23616553240 is 4235561632.

It is a self number, because there is not a number n which added to its sum of digits gives 23616553240.

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, 42172137 + ... + 42172696.

It is an arithmetic number, because the mean of its divisors is an integer number (1897758765).

Almost surely, 2^23616553240 is an apocalyptic number.

23616553240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23616553240 is an abundant number, since it is smaller than the sum of its proper divisors (37111727240).

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

23616553240 is a wasteful number, since it uses less digits than its factorization.

23616553240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84344851 (or 84344847 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 23616553240 in words is "twenty-three billion, six hundred sixteen million, five hundred fifty-three thousand, two hundred forty".