115065720 has 288 divisors, whose sum is σ = 475366320. Its totient is φ = 23869440.

The previous prime is 115065719. The next prime is 115065761. The reversal of 115065720 is 27560511.

115065720 is a `hidden beast` number, since 1 + 1 + 5 + 0 + 657 + 2 + 0 = 666.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 193744 + ... + 194336.

Almost surely, 2^115065720 is an apocalyptic number.

115065720 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 115065720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237683160).

115065720 is an abundant number, since it is smaller than the sum of its proper divisors (360300600).

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

115065720 is a wasteful number, since it uses less digits than its factorization.

115065720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 115065720 is about 10726.8690679061. The cubic root of 115065720 is about 486.3870310304.

The spelling of 115065720 in words is "one hundred fifteen million, sixty-five thousand, seven hundred twenty".