23915520000000 has 1088 divisors, whose sum is σ = 89087092248960. Its totient is φ = 6340608000000.

The previous prime is 23915519999983. The next prime is 23915520000061. The reversal of 23915520000000 is 2551932.

23915520000000 is a `hidden beast` number, since 23 + 91 + 552 + 0 + 0 + 0 + 0 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 138239999914 + ... + 138240000086.

Almost surely, 2^{23915520000000} is an apocalyptic number.

23915520000000 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 23915520000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44543546124480).

23915520000000 is an abundant number, since it is smaller than the sum of its proper divisors (65171572248960).

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

23915520000000 is an frugal number, since it uses more digits than its factorization.

23915520000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 23915520000000 its reverse (2551932), we get a palindrome (23915522551932).

The spelling of 23915520000000 in words is "twenty-three trillion, nine hundred fifteen billion, five hundred twenty million", and thus it is an aban number.