8265565165 has 16 divisors (see below), whose sum is σ = 11652713856. Its totient is φ = 5548910400.

The previous prime is 8265565129. The next prime is 8265565171. The reversal of 8265565165 is 5615655628.

It is not a de Polignac number, because 8265565165 - 2⁷ = 8265565037 is a prime.

It is a super-2 number, since 2×8265565165² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 5779401 + ... + 5780830.

It is an arithmetic number, because the mean of its divisors is an integer number (728294616).

Almost surely, 2^8265565165 is an apocalyptic number.

It is an amenable number.

8265565165 is a deficient number, since it is larger than the sum of its proper divisors (3387148691).

8265565165 is a wasteful number, since it uses less digits than its factorization.

8265565165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11560260.

The product of its digits is 2160000, while the sum is 49.

The square root of 8265565165 is about 90915.1536598822. The cubic root of 8265565165 is about 2021.8899709170.

The spelling of 8265565165 in words is "eight billion, two hundred sixty-five million, five hundred sixty-five thousand, one hundred sixty-five".