1116320165 has 16 divisors (see below), whose sum is σ = 1376820480. Its totient is φ = 868570560.

The previous prime is 1116320143. The next prime is 1116320279. The reversal of 1116320165 is 5610236111.

It is not a de Polignac number, because 1116320165 - 2²⁶ = 1049211301 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 5375 + ... + 47555.

It is an arithmetic number, because the mean of its divisors is an integer number (86051280).

Almost surely, 2^1116320165 is an apocalyptic number.

It is an amenable number.

1116320165 is a deficient number, since it is larger than the sum of its proper divisors (260500315).

1116320165 is an equidigital number, since it uses as much as digits as its factorization.

1116320165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42332.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1116320165 is about 33411.3777776374. The cubic root of 1116320165 is about 1037.3602200035.

Adding to 1116320165 its reverse (5610236111), we get a palindrome (6726556276).

The spelling of 1116320165 in words is "one billion, one hundred sixteen million, three hundred twenty thousand, one hundred sixty-five".