115553204020 has 96 divisors (see below), whose sum is σ = 260015857920. Its totient is φ = 43005219840.

The previous prime is 115553204017. The next prime is 115553204089. The reversal of 115553204020 is 20402355511.

It is a self number, because there is not a number n which added to its sum of digits gives 115553204020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16848432 + ... + 16855288.

It is an arithmetic number, because the mean of its divisors is an integer number (2708498520).

Almost surely, 2^115553204020 is an apocalyptic number.

115553204020 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 115553204020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130007928960).

115553204020 is an abundant number, since it is smaller than the sum of its proper divisors (144462653900).

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

115553204020 is a wasteful number, since it uses less digits than its factorization.

115553204020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7673 (or 7671 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 115553204020 its reverse (20402355511), we get a palindrome (135955559531).

The spelling of 115553204020 in words is "one hundred fifteen billion, five hundred fifty-three million, two hundred four thousand, twenty".