65622715871 has 2 divisors, whose sum is σ = 65622715872. Its totient is φ = 65622715870.

The previous prime is 65622715841. The next prime is 65622715877. The reversal of 65622715871 is 17851722656.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65622715871 - 2³⁰ = 64548974047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65622715877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32811357935 + 32811357936.

It is an arithmetic number, because the mean of its divisors is an integer number (32811357936).

Almost surely, 2^65622715871 is an apocalyptic number.

65622715871 is a deficient number, since it is larger than the sum of its proper divisors (1).

65622715871 is an equidigital number, since it uses as much as digits as its factorization.

65622715871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1411200, while the sum is 50.

The spelling of 65622715871 in words is "sixty-five billion, six hundred twenty-two million, seven hundred fifteen thousand, eight hundred seventy-one".