65215232279 has 2 divisors, whose sum is σ = 65215232280. Its totient is φ = 65215232278.

The previous prime is 65215232267. The next prime is 65215232281. The reversal of 65215232279 is 97223251256.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65215232279 - 2²⁸ = 64946796823 is a prime.

Together with 65215232281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65215232209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32607616139 + 32607616140.

It is an arithmetic number, because the mean of its divisors is an integer number (32607616140).

Almost surely, 2^65215232279 is an apocalyptic number.

65215232279 is a deficient number, since it is larger than the sum of its proper divisors (1).

65215232279 is an equidigital number, since it uses as much as digits as its factorization.

65215232279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 44.

The spelling of 65215232279 in words is "sixty-five billion, two hundred fifteen million, two hundred thirty-two thousand, two hundred seventy-nine".