65744271361 has 4 divisors (see below), whose sum is σ = 66644877892. Its totient is φ = 64843664832.

The previous prime is 65744271337. The next prime is 65744271413. The reversal of 65744271361 is 16317244756.

65744271361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 35274474225 + 30469797136 = 187815^2 + 174556^2 .

It is a cyclic number.

It is not a de Polignac number, because 65744271361 - 2³¹ = 63596787713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65744271311) 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, 450303156 + ... + 450303301.

It is an arithmetic number, because the mean of its divisors is an integer number (16661219473).

Almost surely, 2^65744271361 is an apocalyptic number.

It is an amenable number.

65744271361 is a deficient number, since it is larger than the sum of its proper divisors (900606531).

65744271361 is an equidigital number, since it uses as much as digits as its factorization.

65744271361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900606530.

The product of its digits is 846720, while the sum is 46.

The spelling of 65744271361 in words is "sixty-five billion, seven hundred forty-four million, two hundred seventy-one thousand, three hundred sixty-one".