115065565665 has 16 divisors (see below), whose sum is σ = 186002896128. Its totient is φ = 60735638016.

The previous prime is 115065565639. The next prime is 115065565673. The reversal of 115065565665 is 566565560511.

It is not a de Polignac number, because 115065565665 - 2⁸ = 115065565409 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39539977 + ... + 39542886.

It is an arithmetic number, because the mean of its divisors is an integer number (11625181008).

Almost surely, 2^115065565665 is an apocalyptic number.

115065565665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115065565665 is a deficient number, since it is larger than the sum of its proper divisors (70937330463).

115065565665 is an equidigital number, since it uses as much as digits as its factorization.

115065565665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79082968.

The product of its (nonzero) digits is 4050000, while the sum is 51.

The spelling of 115065565665 in words is "one hundred fifteen billion, sixty-five million, five hundred sixty-five thousand, six hundred sixty-five".