115449615120 has 80 divisors (see below), whose sum is σ = 409021499520. Its totient is φ = 26388483072.

The previous prime is 115449615053. The next prime is 115449615133. The reversal of 115449615120 is 21516944511.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×115449615120² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34358325 + ... + 34361684.

It is an arithmetic number, because the mean of its divisors is an integer number (5112768744).

Almost surely, 2^115449615120 is an apocalyptic number.

115449615120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115449615120 is an abundant number, since it is smaller than the sum of its proper divisors (293571884400).

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

115449615120 is a wasteful number, since it uses less digits than its factorization.

115449615120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68720032 (or 68720026 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The spelling of 115449615120 in words is "one hundred fifteen billion, four hundred forty-nine million, six hundred fifteen thousand, one hundred twenty".