64422566522417 has 2 divisors, whose sum is σ = 64422566522418. Its totient is φ = 64422566522416.

The previous prime is 64422566522389. The next prime is 64422566522471. The reversal of 64422566522417 is 71422566522446.

64422566522417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (64422566522471) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61886290502656 + 2536276019761 = 7866784^2 + 1592569^2 .

It is a cyclic number.

It is not a de Polignac number, because 64422566522417 - 2¹⁶ = 64422566456881 is a prime.

It is not a weakly prime, because it can be changed into another prime (64422566522117) 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, 32211283261208 + 32211283261209.

It is an arithmetic number, because the mean of its divisors is an integer number (32211283261209).

Almost surely, 2^{64422566522417} is an apocalyptic number.

It is an amenable number.

64422566522417 is a deficient number, since it is larger than the sum of its proper divisors (1).

64422566522417 is an equidigital number, since it uses as much as digits as its factorization.

64422566522417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38707200, while the sum is 56.

The spelling of 64422566522417 in words is "sixty-four trillion, four hundred twenty-two billion, five hundred sixty-six million, five hundred twenty-two thousand, four hundred seventeen".