115665605 has 8 divisors (see below), whose sum is σ = 151416864. Its totient is φ = 84120400.

The previous prime is 115665593. The next prime is 115665607. The reversal of 115665605 is 506566511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115665605 - 2⁶ = 115665541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115665607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051451 + ... + 1051560.

It is an arithmetic number, because the mean of its divisors is an integer number (18927108).

Almost surely, 2^115665605 is an apocalyptic number.

It is an amenable number.

115665605 is a deficient number, since it is larger than the sum of its proper divisors (35751259).

115665605 is a wasteful number, since it uses less digits than its factorization.

115665605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103027.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 115665605 is about 10754.7945122164. The cubic root of 115665605 is about 487.2308117198.

It can be divided in two parts, 11566 and 5605, that added together give a palindrome (17171).

The spelling of 115665605 in words is "one hundred fifteen million, six hundred sixty-five thousand, six hundred five".