65108385 has 24 divisors (see below), whose sum is σ = 119494440. Its totient is φ = 32681472.

The previous prime is 65108363. The next prime is 65108387. The reversal of 65108385 is 58380156.

It can be written as a sum of positive squares in 4 ways, for example, as 11350161 + 53758224 = 3369^2 + 7332^2 .

It is not a de Polignac number, because 65108385 - 2⁸ = 65108129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65108387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41790 + ... + 43319.

It is an arithmetic number, because the mean of its divisors is an integer number (4978935).

Almost surely, 2^65108385 is an apocalyptic number.

It is an amenable number.

65108385 is a deficient number, since it is larger than the sum of its proper divisors (54386055).

65108385 is a wasteful number, since it uses less digits than its factorization.

65108385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85137 (or 85134 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 65108385 is about 8068.9767009206. The cubic root of 65108385 is about 402.2959319443.

The spelling of 65108385 in words is "sixty-five million, one hundred eight thousand, three hundred eighty-five".