663530167 has 2 divisors, whose sum is σ = 663530168. Its totient is φ = 663530166.

The previous prime is 663530159. The next prime is 663530173. The reversal of 663530167 is 761035366.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 663530167 - 2³ = 663530159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663530767) 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, 331765083 + 331765084.

It is an arithmetic number, because the mean of its divisors is an integer number (331765084).

Almost surely, 2^663530167 is an apocalyptic number.

663530167 is a deficient number, since it is larger than the sum of its proper divisors (1).

663530167 is an equidigital number, since it uses as much as digits as its factorization.

663530167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 663530167 is about 25759.0793119630. The cubic root of 663530167 is about 872.2083181944.

The spelling of 663530167 in words is "six hundred sixty-three million, five hundred thirty thousand, one hundred sixty-seven".