1165165113 has 16 divisors (see below), whose sum is σ = 1823477120. Its totient is φ = 647813376.

The previous prime is 1165165097. The next prime is 1165165117. The reversal of 1165165113 is 3115615611.

It is not a de Polignac number, because 1165165113 - 2⁴ = 1165165097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1165165117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 749008 + ... + 750561.

It is an arithmetic number, because the mean of its divisors is an integer number (113967320).

Almost surely, 2^1165165113 is an apocalyptic number.

It is an amenable number.

1165165113 is a deficient number, since it is larger than the sum of its proper divisors (658312007).

1165165113 is a wasteful number, since it uses less digits than its factorization.

1165165113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499616.

The product of its digits is 2700, while the sum is 30.

The square root of 1165165113 is about 34134.5149811741. The cubic root of 1165165113 is about 1052.2747698590.

The spelling of 1165165113 in words is "one billion, one hundred sixty-five million, one hundred sixty-five thousand, one hundred thirteen".