63575166673 has 2 divisors, whose sum is σ = 63575166674. Its totient is φ = 63575166672.

The previous prime is 63575166671. The next prime is 63575166703. The reversal of 63575166673 is 37666157536.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56269532944 + 7305633729 = 237212^2 + 85473^2 .

It is a cyclic number.

It is not a de Polignac number, because 63575166673 - 2¹ = 63575166671 is a prime.

Together with 63575166671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (63575166671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31787583336 + 31787583337.

It is an arithmetic number, because the mean of its divisors is an integer number (31787583337).

Almost surely, 2^63575166673 is an apocalyptic number.

It is an amenable number.

63575166673 is a deficient number, since it is larger than the sum of its proper divisors (1).

63575166673 is an equidigital number, since it uses as much as digits as its factorization.

63575166673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14288400, while the sum is 55.

The spelling of 63575166673 in words is "sixty-three billion, five hundred seventy-five million, one hundred sixty-six thousand, six hundred seventy-three".