115021856880 has 240 divisors, whose sum is σ = 455706261504. Its totient is φ = 25442588160.

The previous prime is 115021856861. The next prime is 115021856881. The reversal of 115021856880 is 88658120511.

115021856880 is a `hidden beast` number, since 1 + 1 + 5 + 0 + 2 + 1 + 8 + 568 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115021856881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 211854 + ... + 524333.

Almost surely, 2^115021856880 is an apocalyptic number.

115021856880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115021856880 is an abundant number, since it is smaller than the sum of its proper divisors (340684404624).

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

115021856880 is a wasteful number, since it uses less digits than its factorization.

115021856880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736244 (or 736235 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 45.

The spelling of 115021856880 in words is "one hundred fifteen billion, twenty-one million, eight hundred fifty-six thousand, eight hundred eighty".