664415282514479 has 2 divisors, whose sum is σ = 664415282514480. Its totient is φ = 664415282514478.

The previous prime is 664415282514433. The next prime is 664415282514551. The reversal of 664415282514479 is 974415282514466.

664415282514479 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 664415282514479 - 2⁸ = 664415282514223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (664415282564479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332207641257239 + 332207641257240.

It is an arithmetic number, because the mean of its divisors is an integer number (332207641257240).

Almost surely, 2^{664415282514479} is an apocalyptic number.

664415282514479 is a deficient number, since it is larger than the sum of its proper divisors (1).

664415282514479 is an equidigital number, since it uses as much as digits as its factorization.

664415282514479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 464486400, while the sum is 68.

The spelling of 664415282514479 in words is "six hundred sixty-four trillion, four hundred fifteen billion, two hundred eighty-two million, five hundred fourteen thousand, four hundred seventy-nine".