115157178880 has 320 divisors, whose sum is σ = 292229296128. Its totient is φ = 43475927040.

The previous prime is 115157178853. The next prime is 115157178901. The reversal of 115157178880 is 88871751511.

It is a tau number, because it is divible by the number of its divisors (320).

It is a super-2 number, since 2×115157178880² (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 31 ways as a sum of consecutive naturals, for example, 706485679 + ... + 706485841.

Almost surely, 2^115157178880 is an apocalyptic number.

115157178880 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 115157178880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146114648064).

115157178880 is an abundant number, since it is smaller than the sum of its proper divisors (177072117248).

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

115157178880 is a wasteful number, since it uses less digits than its factorization.

115157178880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 52.

The spelling of 115157178880 in words is "one hundred fifteen billion, one hundred fifty-seven million, one hundred seventy-eight thousand, eight hundred eighty".