204666205622 has 16 divisors (see below), whose sum is σ = 325411849440. Its totient is φ = 96208691328.

The previous prime is 204666205609. The next prime is 204666205631. The reversal of 204666205622 is 226502666402.

It is a self number, because there is not a number n which added to its sum of digits gives 204666205622.

It is a congruent number.

It is an unprimeable number.

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, 3243833 + ... + 3306324.

It is an arithmetic number, because the mean of its divisors is an integer number (20338240590).

Almost surely, 2^204666205622 is an apocalyptic number.

204666205622 is a deficient number, since it is larger than the sum of its proper divisors (120745643818).

204666205622 is a wasteful number, since it uses less digits than its factorization.

204666205622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6551095.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 204666205622 in words is "two hundred four billion, six hundred sixty-six million, two hundred five thousand, six hundred twenty-two".