264335165 has 4 divisors (see below), whose sum is σ = 317202204. Its totient is φ = 211468128.

The previous prime is 264335161. The next prime is 264335189. The reversal of 264335165 is 561533462.

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 114468601 + 149866564 = 10699^2 + 12242^2 .

It is a cyclic number.

It is not a de Polignac number, because 264335165 - 2² = 264335161 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264335161) 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, 26433512 + ... + 26433521.

It is an arithmetic number, because the mean of its divisors is an integer number (79300551).

Almost surely, 2^264335165 is an apocalyptic number.

It is an amenable number.

264335165 is a deficient number, since it is larger than the sum of its proper divisors (52867039).

264335165 is an equidigital number, since it uses as much as digits as its factorization.

264335165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52867038.

The product of its digits is 64800, while the sum is 35.

The square root of 264335165 is about 16258.3875276732. The cubic root of 264335165 is about 641.7782292857.

The spelling of 264335165 in words is "two hundred sixty-four million, three hundred thirty-five thousand, one hundred sixty-five".