163448228563 has 2 divisors, whose sum is σ = 163448228564. Its totient is φ = 163448228562.

The previous prime is 163448228561. The next prime is 163448228569. The reversal of 163448228563 is 365822844361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163448228563 - 2¹ = 163448228561 is a prime.

Together with 163448228561, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 163448228563.

It is not a weakly prime, because it can be changed into another prime (163448228561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81724114281 + 81724114282.

It is an arithmetic number, because the mean of its divisors is an integer number (81724114282).

Almost surely, 2^163448228563 is an apocalyptic number.

163448228563 is a deficient number, since it is larger than the sum of its proper divisors (1).

163448228563 is an equidigital number, since it uses as much as digits as its factorization.

163448228563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6635520, while the sum is 52.

The spelling of 163448228563 in words is "one hundred sixty-three billion, four hundred forty-eight million, two hundred twenty-eight thousand, five hundred sixty-three".