65165258605 has 16 divisors (see below), whose sum is σ = 78455473200. Its totient is φ = 51960960000.

The previous prime is 65165258603. The next prime is 65165258617. The reversal of 65165258605 is 50685256156.

It can be written as a sum of positive squares in 8 ways, for example, as 37197801 + 65128060804 = 6099^2 + 255202^2 .

It is not a de Polignac number, because 65165258605 - 2¹ = 65165258603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65165258603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2884855 + ... + 2907355.

It is an arithmetic number, because the mean of its divisors is an integer number (4903467075).

Almost surely, 2^65165258605 is an apocalyptic number.

It is an amenable number.

65165258605 is a deficient number, since it is larger than the sum of its proper divisors (13290214595).

65165258605 is a wasteful number, since it uses less digits than its factorization.

65165258605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24384.

The product of its (nonzero) digits is 2160000, while the sum is 49.

The spelling of 65165258605 in words is "sixty-five billion, one hundred sixty-five million, two hundred fifty-eight thousand, six hundred five".