668107163 has 2 divisors, whose sum is σ = 668107164. Its totient is φ = 668107162.

The previous prime is 668107159. The next prime is 668107267. The reversal of 668107163 is 361701866.

668107163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 668107163 - 2² = 668107159 is a prime.

It is a super-3 number, since 3×668107163³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (668100163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334053581 + 334053582.

It is an arithmetic number, because the mean of its divisors is an integer number (334053582).

Almost surely, 2^668107163 is an apocalyptic number.

668107163 is a deficient number, since it is larger than the sum of its proper divisors (1).

668107163 is an equidigital number, since it uses as much as digits as its factorization.

668107163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 668107163 is about 25847.7690139787. The cubic root of 668107163 is about 874.2092068313.

The spelling of 668107163 in words is "six hundred sixty-eight million, one hundred seven thousand, one hundred sixty-three".