65406372285697 has 2 divisors, whose sum is σ = 65406372285698. Its totient is φ = 65406372285696.

The previous prime is 65406372285629. The next prime is 65406372285731. The reversal of 65406372285697 is 79658227360456.

65406372285697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55335879338481 + 10070492947216 = 7438809^2 + 3173404^2 .

It is a cyclic number.

It is not a de Polignac number, because 65406372285697 - 2³⁵ = 65372012547329 is a prime.

It is not a weakly prime, because it can be changed into another prime (65406372285607) 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, 32703186142848 + 32703186142849.

It is an arithmetic number, because the mean of its divisors is an integer number (32703186142849).

Almost surely, 2^{65406372285697} is an apocalyptic number.

It is an amenable number.

65406372285697 is a deficient number, since it is larger than the sum of its proper divisors (1).

65406372285697 is an equidigital number, since it uses as much as digits as its factorization.

65406372285697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 914457600, while the sum is 70.

The spelling of 65406372285697 in words is "sixty-five trillion, four hundred six billion, three hundred seventy-two million, two hundred eighty-five thousand, six hundred ninety-seven".