115237360665 has 80 divisors (see below), whose sum is σ = 243699962880. Its totient is φ = 50980544640.

The previous prime is 115237360663. The next prime is 115237360673. The reversal of 115237360665 is 566063732511.

115237360665 is a `hidden beast` number, since 1 + 1 + 5 + 2 + 37 + 3 + 606 + 6 + 5 = 666.

It is not a de Polignac number, because 115237360665 - 2¹ = 115237360663 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 115237360665.

It is not an unprimeable number, because it can be changed into a prime (115237360663) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 567730 + ... + 743499.

It is an arithmetic number, because the mean of its divisors is an integer number (3046249536).

Almost surely, 2^115237360665 is an apocalyptic number.

115237360665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115237360665 is an abundant number, since it is smaller than the sum of its proper divisors (128462602215).

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

115237360665 is a wasteful number, since it uses less digits than its factorization.

115237360665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311284 (or 1311275 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The spelling of 115237360665 in words is "one hundred fifteen billion, two hundred thirty-seven million, three hundred sixty thousand, six hundred sixty-five".