115540992000 has 1120 divisors, whose sum is σ = 494792812800. Its totient is φ = 26276659200.

The previous prime is 115540991987. The next prime is 115540992023. The reversal of 115540992000 is 299045511.

115540992000 is a `hidden beast` number, since 1 + 1 + 5 + 540 + 99 + 20 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1120).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 580607901 + ... + 580608099.

Almost surely, 2^115540992000 is an apocalyptic number.

115540992000 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 115540992000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247396406400).

115540992000 is an abundant number, since it is smaller than the sum of its proper divisors (379251820800).

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

115540992000 is an frugal number, since it uses more digits than its factorization.

115540992000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The spelling of 115540992000 in words is "one hundred fifteen billion, five hundred forty million, nine hundred ninety-two thousand".