664124263417 has 2 divisors, whose sum is σ = 664124263418. Its totient is φ = 664124263416.

The previous prime is 664124263399. The next prime is 664124263463. The reversal of 664124263417 is 714362421466.

It is an a-pointer prime, because the next prime (664124263463) can be obtained adding 664124263417 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 662687171136 + 1437092281 = 814056^2 + 37909^2 .

It is a cyclic number.

It is not a de Polignac number, because 664124263417 - 2²³ = 664115874809 is a prime.

It is a super-2 number, since 2×664124263417² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (664124263487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332062131708 + 332062131709.

It is an arithmetic number, because the mean of its divisors is an integer number (332062131709).

Almost surely, 2^664124263417 is an apocalyptic number.

It is an amenable number.

664124263417 is a deficient number, since it is larger than the sum of its proper divisors (1).

664124263417 is an equidigital number, since it uses as much as digits as its factorization.

664124263417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 46.

The spelling of 664124263417 in words is "six hundred sixty-four billion, one hundred twenty-four million, two hundred sixty-three thousand, four hundred seventeen".