163193663 has 2 divisors, whose sum is σ = 163193664. Its totient is φ = 163193662.

The previous prime is 163193651. The next prime is 163193677. The reversal of 163193663 is 366391361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163193663 - 2¹² = 163189567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163193623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81596831 + 81596832.

It is an arithmetic number, because the mean of its divisors is an integer number (81596832).

Almost surely, 2^163193663 is an apocalyptic number.

163193663 is a deficient number, since it is larger than the sum of its proper divisors (1).

163193663 is an equidigital number, since it uses as much as digits as its factorization.

163193663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 38.

The square root of 163193663 is about 12774.7275117710. The cubic root of 163193663 is about 546.4718099315.

The spelling of 163193663 in words is "one hundred sixty-three million, one hundred ninety-three thousand, six hundred sixty-three".