163563043263 has 8 divisors (see below), whose sum is σ = 218094419376. Its totient is φ = 109036848000.

The previous prime is 163563043261. The next prime is 163563043283. The reversal of 163563043263 is 362340365361.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 163563043263 - 2¹ = 163563043261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163563043261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1220938 + ... + 1348263.

It is an arithmetic number, because the mean of its divisors is an integer number (27261802422).

Almost surely, 2^163563043263 is an apocalyptic number.

163563043263 is a deficient number, since it is larger than the sum of its proper divisors (54531376113).

163563043263 is a wasteful number, since it uses less digits than its factorization.

163563043263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590425.

The product of its (nonzero) digits is 699840, while the sum is 42.

The spelling of 163563043263 in words is "one hundred sixty-three billion, five hundred sixty-three million, forty-three thousand, two hundred sixty-three".