65792165 has 4 divisors (see below), whose sum is σ = 78950604. Its totient is φ = 52633728.

The previous prime is 65792161. The next prime is 65792171. The reversal of 65792165 is 56129756.

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 23203489 + 42588676 = 4817^2 + 6526^2 .

It is a cyclic number.

It is not a de Polignac number, because 65792165 - 2² = 65792161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65792161) 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, 6579212 + ... + 6579221.

It is an arithmetic number, because the mean of its divisors is an integer number (19737651).

Almost surely, 2^65792165 is an apocalyptic number.

It is an amenable number.

65792165 is a deficient number, since it is larger than the sum of its proper divisors (13158439).

65792165 is a wasteful number, since it uses less digits than its factorization.

65792165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13158438.

The product of its digits is 113400, while the sum is 41.

The square root of 65792165 is about 8111.2369586889. The cubic root of 65792165 is about 403.6993584783.

The spelling of 65792165 in words is "sixty-five million, seven hundred ninety-two thousand, one hundred sixty-five".