115550113217 has 32 divisors (see below), whose sum is σ = 149049753600. Its totient is φ = 86935291200.

The previous prime is 115550113213. The next prime is 115550113229. The reversal of 115550113217 is 712311055511.

It is a cyclic number.

It is not a de Polignac number, because 115550113217 - 2² = 115550113213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115550113213) 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, 992759 + ... + 1103027.

It is an arithmetic number, because the mean of its divisors is an integer number (4657804800).

Almost surely, 2^115550113217 is an apocalyptic number.

It is an amenable number.

115550113217 is a deficient number, since it is larger than the sum of its proper divisors (33499640383).

115550113217 is a wasteful number, since it uses less digits than its factorization.

115550113217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110757.

The product of its (nonzero) digits is 5250, while the sum is 32.

Adding to 115550113217 its reverse (712311055511), we get a palindrome (827861168728).

The spelling of 115550113217 in words is "one hundred fifteen billion, five hundred fifty million, one hundred thirteen thousand, two hundred seventeen".