18530560063 has 2 divisors, whose sum is σ = 18530560064. Its totient is φ = 18530560062.

The previous prime is 18530560057. The next prime is 18530560159. The reversal of 18530560063 is 36006503581.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18530560063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18530560003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9265280031 + 9265280032.

It is an arithmetic number, because the mean of its divisors is an integer number (9265280032).

Almost surely, 2^18530560063 is an apocalyptic number.

18530560063 is a deficient number, since it is larger than the sum of its proper divisors (1).

18530560063 is an equidigital number, since it uses as much as digits as its factorization.

18530560063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 18530560063 in words is "eighteen billion, five hundred thirty million, five hundred sixty thousand, sixty-three".