163859705223 has 4 divisors (see below), whose sum is σ = 218479606968. Its totient is φ = 109239803480.

The previous prime is 163859705221. The next prime is 163859705239. The reversal of 163859705223 is 322507958361.

163859705223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 163859705223 - 2¹ = 163859705221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163859705221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27309950868 + ... + 27309950873.

It is an arithmetic number, because the mean of its divisors is an integer number (54619901742).

Almost surely, 2^163859705223 is an apocalyptic number.

163859705223 is a deficient number, since it is larger than the sum of its proper divisors (54619901745).

163859705223 is an equidigital number, since it uses as much as digits as its factorization.

163859705223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54619901744.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 163859705223 in words is "one hundred sixty-three billion, eight hundred fifty-nine million, seven hundred five thousand, two hundred twenty-three".