115631621600 has 144 divisors (see below), whose sum is σ = 308127059856. Its totient is φ = 42023424000.

The previous prime is 115631621563. The next prime is 115631621603. The reversal of 115631621600 is 6126136511.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115631621603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23027090 + ... + 23032110.

It is an arithmetic number, because the mean of its divisors is an integer number (2139771249).

Almost surely, 2^115631621600 is an apocalyptic number.

115631621600 is a gapful number since it is divisible by the number (10) 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 115631621600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154063529928).

115631621600 is an abundant number, since it is smaller than the sum of its proper divisors (192495438256).

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

115631621600 is a wasteful number, since it uses less digits than its factorization.

115631621600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7669 (or 7656 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 115631621600 in words is "one hundred fifteen billion, six hundred thirty-one million, six hundred twenty-one thousand, six hundred".