663163 has 2 divisors, whose sum is σ = 663164. Its totient is φ = 663162.

The previous prime is 663161. The next prime is 663167. The reversal of 663163 is 361366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 663163 - 2¹ = 663161 is a prime.

Together with 663161, it forms a pair of twin primes.

663163 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (663161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331581 + 331582.

It is an arithmetic number, because the mean of its divisors is an integer number (331582).

2⁶⁶³¹⁶³ is an apocalyptic number.

663163 is a deficient number, since it is larger than the sum of its proper divisors (1).

663163 is an equidigital number, since it uses as much as digits as its factorization.

663163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 25.

The square root of 663163 is about 814.3482056221. The cubic root of 663163 is about 87.2047408555.

The spelling of 663163 in words is "six hundred sixty-three thousand, one hundred sixty-three".