115485800220 has 480 divisors, whose sum is σ = 424820723712. Its totient is φ = 25718280192.

The previous prime is 115485800219. The next prime is 115485800231. The reversal of 115485800220 is 22008584511.

115485800220 is a `hidden beast` number, since 1 + 1 + 54 + 8 + 580 + 0 + 2 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 73697877 + ... + 73699443.

Almost surely, 2^115485800220 is an apocalyptic number.

115485800220 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 115485800220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212410361856).

115485800220 is an abundant number, since it is smaller than the sum of its proper divisors (309334923492).

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

115485800220 is a wasteful number, since it uses less digits than its factorization.

115485800220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759 (or 1748 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The spelling of 115485800220 in words is "one hundred fifteen billion, four hundred eighty-five million, eight hundred thousand, two hundred twenty".