8102288165 has 4 divisors (see below), whose sum is σ = 9722745804. Its totient is φ = 6481830528.

The previous prime is 8102288153. The next prime is 8102288189. The reversal of 8102288165 is 5618822018.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 815787844 + 7286500321 = 28562^2 + 85361^2 .

It is a cyclic number.

It is not a de Polignac number, because 8102288165 - 2⁶ = 8102288101 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 810228812 + ... + 810228821.

It is an arithmetic number, because the mean of its divisors is an integer number (2430686451).

Almost surely, 2^8102288165 is an apocalyptic number.

It is an amenable number.

8102288165 is a deficient number, since it is larger than the sum of its proper divisors (1620457639).

8102288165 is a wasteful number, since it uses less digits than its factorization.

8102288165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620457638.

The product of its (nonzero) digits is 61440, while the sum is 41.

The square root of 8102288165 is about 90012.7111301509. The cubic root of 8102288165 is about 2008.4879402258.

The spelling of 8102288165 in words is "eight billion, one hundred two million, two hundred eighty-eight thousand, one hundred sixty-five".