663606059 has 2 divisors, whose sum is σ = 663606060. Its totient is φ = 663606058.

The previous prime is 663606023. The next prime is 663606079. The reversal of 663606059 is 950606366.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-663606059 is a prime.

It is a super-2 number, since 2×663606059² = 880746003083022962, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_34463867 and since 663606059 and 34463867 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (663606079) 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, 331803029 + 331803030.

It is an arithmetic number, because the mean of its divisors is an integer number (331803030).

Almost surely, 2^663606059 is an apocalyptic number.

663606059 is a deficient number, since it is larger than the sum of its proper divisors (1).

663606059 is an equidigital number, since it uses as much as digits as its factorization.

663606059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 41.

The square root of 663606059 is about 25760.5523814999. The cubic root of 663606059 is about 872.2415701918.

The spelling of 663606059 in words is "six hundred sixty-three million, six hundred six thousand, fifty-nine".