65665327 has 8 divisors (see below), whose sum is σ = 80818976. Its totient is φ = 51954912.

The previous prime is 65665319. The next prime is 65665331. The reversal of 65665327 is 72356656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65665327 - 2³ = 65665319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65665327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65665727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360708 + ... + 360889.

It is an arithmetic number, because the mean of its divisors is an integer number (10102372).

Almost surely, 2^65665327 is an apocalyptic number.

65665327 is a deficient number, since it is larger than the sum of its proper divisors (15153649).

65665327 is a wasteful number, since it uses less digits than its factorization.

65665327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721617.

The product of its digits is 226800, while the sum is 40.

The square root of 65665327 is about 8103.4145272225. The cubic root of 65665327 is about 403.4397664763.

The spelling of 65665327 in words is "sixty-five million, six hundred sixty-five thousand, three hundred twenty-seven".