115115216013 has 32 divisors (see below), whose sum is σ = 195778150400. Its totient is φ = 65485121328.

The previous prime is 115115216011. The next prime is 115115216093. The reversal of 115115216013 is 310612511511.

115115216013 is a `hidden beast` number, since 1 + 1 + 5 + 1 + 1 + 52 + 1 + 601 + 3 = 666.

It is not a de Polignac number, because 115115216013 - 2¹ = 115115216011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115115216011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1323493 + ... + 1407786.

It is an arithmetic number, because the mean of its divisors is an integer number (6118067200).

Almost surely, 2^115115216013 is an apocalyptic number.

It is an amenable number.

115115216013 is a deficient number, since it is larger than the sum of its proper divisors (80662934387).

115115216013 is a wasteful number, since it uses less digits than its factorization.

115115216013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731518 (or 2731512 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

Adding to 115115216013 its reverse (310612511511), we get a palindrome (425727727524).

The spelling of 115115216013 in words is "one hundred fifteen billion, one hundred fifteen million, two hundred sixteen thousand, thirteen".