663627163 has 2 divisors, whose sum is σ = 663627164. Its totient is φ = 663627162.

The previous prime is 663627101. The next prime is 663627179. The reversal of 663627163 is 361726366.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 663627163 - 2⁹ = 663626651 is a prime.

It is a super-2 number, since 2×663627163² = 880802022942857138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (663625163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331813581 + 331813582.

It is an arithmetic number, because the mean of its divisors is an integer number (331813582).

Almost surely, 2^663627163 is an apocalyptic number.

663627163 is a deficient number, since it is larger than the sum of its proper divisors (1).

663627163 is an equidigital number, since it uses as much as digits as its factorization.

663627163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 40.

The square root of 663627163 is about 25760.9619967889. The cubic root of 663627163 is about 872.2508164360.

The spelling of 663627163 in words is "six hundred sixty-three million, six hundred twenty-seven thousand, one hundred sixty-three".