115143332520 has 64 divisors (see below), whose sum is σ = 354765957120. Its totient is φ = 29875025664.

The previous prime is 115143332449. The next prime is 115143332537. The reversal of 115143332520 is 25233341511.

It is a super-2 number, since 2×115143332520² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12962152 + ... + 12971031.

It is an arithmetic number, because the mean of its divisors is an integer number (5543218080).

Almost surely, 2^115143332520 is an apocalyptic number.

115143332520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115143332520 is an abundant number, since it is smaller than the sum of its proper divisors (239622624600).

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

115143332520 is a wasteful number, since it uses less digits than its factorization.

115143332520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25933234 (or 25933230 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 115143332520 in words is "one hundred fifteen billion, one hundred forty-three million, three hundred thirty-two thousand, five hundred twenty".