205856422223 has 8 divisors (see below), whose sum is σ = 208090516608. Its totient is φ = 203626856664.

The previous prime is 205856422201. The next prime is 205856422283. The reversal of 205856422223 is 322224658502.

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

It is a cyclic number.

It is not a de Polignac number, because 205856422223 - 2¹⁶ = 205856356687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205856422283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040765 + ... + 1222662.

It is an arithmetic number, because the mean of its divisors is an integer number (26011314576).

Almost surely, 2^205856422223 is an apocalyptic number.

205856422223 is a deficient number, since it is larger than the sum of its proper divisors (2234094385).

205856422223 is a wasteful number, since it uses less digits than its factorization.

205856422223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264413.

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 205856422223 in words is "two hundred five billion, eight hundred fifty-six million, four hundred twenty-two thousand, two hundred twenty-three".