8326509165 has 48 divisors (see below), whose sum is σ = 15634972080. Its totient is φ = 4099155840.

The previous prime is 8326509161. The next prime is 8326509181. The reversal of 8326509165 is 5619056238.

8326509165 is a `hidden beast` number, since 83 + 2 + 6 + 509 + 1 + 65 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 3412779561 + 4913729604 = 58419^2 + 70098^2 .

It is not a de Polignac number, because 8326509165 - 2² = 8326509161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 8326509165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8326509161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56755 + ... + 140975.

It is an arithmetic number, because the mean of its divisors is an integer number (325728585).

Almost surely, 2^8326509165 is an apocalyptic number.

It is an amenable number.

8326509165 is a deficient number, since it is larger than the sum of its proper divisors (7308462915).

8326509165 is a wasteful number, since it uses less digits than its factorization.

8326509165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84271 (or 84242 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 8326509165 is about 91249.7077529567. The cubic root of 8326509165 is about 2026.8471011223.

The spelling of 8326509165 in words is "eight billion, three hundred twenty-six million, five hundred nine thousand, one hundred sixty-five".