243442616163 has 4 divisors (see below), whose sum is σ = 324590154888. Its totient is φ = 162295077440.

The previous prime is 243442616129. The next prime is 243442616167. The reversal of 243442616163 is 361616244342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243442616163 - 2⁸ = 243442615907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243442616167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40573769358 + ... + 40573769363.

It is an arithmetic number, because the mean of its divisors is an integer number (81147538722).

Almost surely, 2^243442616163 is an apocalyptic number.

243442616163 is a deficient number, since it is larger than the sum of its proper divisors (81147538725).

243442616163 is an equidigital number, since it uses as much as digits as its factorization.

243442616163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81147538724.

The product of its digits is 497664, while the sum is 42.

The spelling of 243442616163 in words is "two hundred forty-three billion, four hundred forty-two million, six hundred sixteen thousand, one hundred sixty-three".