115106605665 has 16 divisors (see below), whose sum is σ = 184608038976. Its totient is φ = 61244366400.

The previous prime is 115106605637. The next prime is 115106605681. The reversal of 115106605665 is 566506601511.

It is not a de Polignac number, because 115106605665 - 2⁸ = 115106605409 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9107431 + ... + 9120060.

It is an arithmetic number, because the mean of its divisors is an integer number (11538002436).

Almost surely, 2^115106605665 is an apocalyptic number.

115106605665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115106605665 is a deficient number, since it is larger than the sum of its proper divisors (69501433311).

115106605665 is a wasteful number, since it uses less digits than its factorization.

115106605665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18227920.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 115106605665 in words is "one hundred fifteen billion, one hundred six million, six hundred five thousand, six hundred sixty-five".