1320664463 has 2 divisors, whose sum is σ = 1320664464. Its totient is φ = 1320664462.

The previous prime is 1320664447. The next prime is 1320664481. The reversal of 1320664463 is 3644660231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1320664463 - 2⁴ = 1320664447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320664493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660332231 + 660332232.

It is an arithmetic number, because the mean of its divisors is an integer number (660332232).

Almost surely, 2^1320664463 is an apocalyptic number.

1320664463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320664463 is an equidigital number, since it uses as much as digits as its factorization.

1320664463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 1320664463 is about 36340.9474697620. The cubic root of 1320664463 is about 1097.1453427932.

The spelling of 1320664463 in words is "one billion, three hundred twenty million, six hundred sixty-four thousand, four hundred sixty-three".