65759265961 has 4 divisors (see below), whose sum is σ = 65954397652. Its totient is φ = 65564134272.

The previous prime is 65759265917. The next prime is 65759265997. The reversal of 65759265961 is 16956295756.

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 45190256400 + 20569009561 = 212580^2 + 143419^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65759265961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65759265961.

It is not an unprimeable number, because it can be changed into a prime (65759260961) 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, 97565340 + ... + 97566013.

It is an arithmetic number, because the mean of its divisors is an integer number (16488599413).

Almost surely, 2^65759265961 is an apocalyptic number.

It is an amenable number.

65759265961 is a deficient number, since it is larger than the sum of its proper divisors (195131691).

65759265961 is a wasteful number, since it uses less digits than its factorization.

65759265961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195131690.

The product of its digits is 30618000, while the sum is 61.

The spelling of 65759265961 in words is "sixty-five billion, seven hundred fifty-nine million, two hundred sixty-five thousand, nine hundred sixty-one".