165323065 has 4 divisors (see below), whose sum is σ = 198387684. Its totient is φ = 132258448.

The previous prime is 165323051. The next prime is 165323069. The reversal of 165323065 is 560323561.

165323065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 98148649 + 67174416 = 9907^2 + 8196^2 .

It is a cyclic number.

It is not a de Polignac number, because 165323065 - 2⁵ = 165323033 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165323069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16532302 + ... + 16532311.

It is an arithmetic number, because the mean of its divisors is an integer number (49596921).

Almost surely, 2^165323065 is an apocalyptic number.

It is an amenable number.

165323065 is a deficient number, since it is larger than the sum of its proper divisors (33064619).

165323065 is an equidigital number, since it uses as much as digits as its factorization.

165323065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33064618.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 165323065 is about 12857.8017172454. The cubic root of 165323065 is about 548.8383913667.

The spelling of 165323065 in words is "one hundred sixty-five million, three hundred twenty-three thousand, sixty-five".