65023165 has 12 divisors (see below), whose sum is σ = 79237116. Its totient is φ = 51224448.

The previous prime is 65023163. The next prime is 65023169. The reversal of 65023165 is 56132056.

It can be written as a sum of positive squares in 2 ways, for example, as 14584761 + 50438404 = 3819^2 + 7102^2 .

It is not a de Polignac number, because 65023165 - 2¹ = 65023163 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 (65023163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20997 + ... + 23893.

It is an arithmetic number, because the mean of its divisors is an integer number (6603093).

Almost surely, 2^65023165 is an apocalyptic number.

It is an amenable number.

65023165 is a deficient number, since it is larger than the sum of its proper divisors (14213951).

65023165 is an equidigital number, since it uses as much as digits as its factorization.

65023165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3036 (or 2969 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 65023165 is about 8063.6942526363. The cubic root of 65023165 is about 402.1203343460.

The spelling of 65023165 in words is "sixty-five million, twenty-three thousand, one hundred sixty-five".