664464472303087 has 2 divisors, whose sum is σ = 664464472303088. Its totient is φ = 664464472303086.

The previous prime is 664464472303061. The next prime is 664464472303147. The reversal of 664464472303087 is 780303274464466.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 664464472303087 - 2¹⁹ = 664464471778799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (664464472303007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332232236151543 + 332232236151544.

It is an arithmetic number, because the mean of its divisors is an integer number (332232236151544).

Almost surely, 2^{664464472303087} is an apocalyptic number.

664464472303087 is a deficient number, since it is larger than the sum of its proper divisors (1).

664464472303087 is an equidigital number, since it uses as much as digits as its factorization.

664464472303087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 390168576, while the sum is 64.

The spelling of 664464472303087 in words is "six hundred sixty-four trillion, four hundred sixty-four billion, four hundred seventy-two million, three hundred three thousand, eighty-seven".