668200163 has 16 divisors (see below), whose sum is σ = 709093440. Its totient is φ = 628379136.

The previous prime is 668200157. The next prime is 668200187. The reversal of 668200163 is 361002866.

It is not a de Polignac number, because 668200163 - 2¹⁰ = 668199139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (668200103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402431 + ... + 404087.

It is an arithmetic number, because the mean of its divisors is an integer number (44318340).

Almost surely, 2^668200163 is an apocalyptic number.

668200163 is a deficient number, since it is larger than the sum of its proper divisors (40893277).

668200163 is a wasteful number, since it uses less digits than its factorization.

668200163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 668200163 is about 25849.5679460992. The cubic root of 668200163 is about 874.2497680310.

The spelling of 668200163 in words is "six hundred sixty-eight million, two hundred thousand, one hundred sixty-three".