115501136609 has 4 divisors (see below), whose sum is σ = 115580739120. Its totient is φ = 115421534100.

The previous prime is 115501136567. The next prime is 115501136633. The reversal of 115501136609 is 906631105511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 906631105511 = 953 ⋅951344287.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115501136609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115501136659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39799079 + ... + 39801980.

It is an arithmetic number, because the mean of its divisors is an integer number (28895184780).

Almost surely, 2^115501136609 is an apocalyptic number.

It is an amenable number.

115501136609 is a deficient number, since it is larger than the sum of its proper divisors (79602511).

115501136609 is an equidigital number, since it uses as much as digits as its factorization.

115501136609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79602510.

The product of its (nonzero) digits is 24300, while the sum is 38.

The spelling of 115501136609 in words is "one hundred fifteen billion, five hundred one million, one hundred thirty-six thousand, six hundred nine".