65425365724171 has 2 divisors, whose sum is σ = 65425365724172. Its totient is φ = 65425365724170.

The previous prime is 65425365724163. The next prime is 65425365724181. The reversal of 65425365724171 is 17142756352456.

65425365724171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65425365724171 - 2³ = 65425365724163 is a prime.

It is not a weakly prime, because it can be changed into another prime (65425365724181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32712682862085 + 32712682862086.

It is an arithmetic number, because the mean of its divisors is an integer number (32712682862086).

Almost surely, 2^{65425365724171} is an apocalyptic number.

65425365724171 is a deficient number, since it is larger than the sum of its proper divisors (1).

65425365724171 is an equidigital number, since it uses as much as digits as its factorization.

65425365724171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336000, while the sum is 58.

The spelling of 65425365724171 in words is "sixty-five trillion, four hundred twenty-five billion, three hundred sixty-five million, seven hundred twenty-four thousand, one hundred seventy-one".