115565620560 has 360 divisors, whose sum is σ = 412134827040. Its totient is φ = 26770857984.

The previous prime is 115565620519. The next prime is 115565620561. The reversal of 115565620560 is 65026565511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115565620561) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 11716911 + ... + 11726769.

It is an arithmetic number, because the mean of its divisors is an integer number (1144818964).

Almost surely, 2^115565620560 is an apocalyptic number.

115565620560 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 115565620560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206067413520).

115565620560 is an abundant number, since it is smaller than the sum of its proper divisors (296569206480).

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

115565620560 is a wasteful number, since it uses less digits than its factorization.

115565620560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9935 (or 9899 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 42.

The spelling of 115565620560 in words is "one hundred fifteen billion, five hundred sixty-five million, six hundred twenty thousand, five hundred sixty".