204502434205 has 16 divisors (see below), whose sum is σ = 245845393920. Its totient is φ = 163307158528.

The previous prime is 204502434203. The next prime is 204502434223. The reversal of 204502434205 is 502434205402.

It is a cyclic number.

It is not a de Polignac number, because 204502434205 - 2¹ = 204502434203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204502434203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9886704 + ... + 9907366.

It is an arithmetic number, because the mean of its divisors is an integer number (15365337120).

Almost surely, 2^204502434205 is an apocalyptic number.

It is an amenable number.

204502434205 is a deficient number, since it is larger than the sum of its proper divisors (41342959715).

204502434205 is a wasteful number, since it uses less digits than its factorization.

204502434205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24140.

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 204502434205 its reverse (502434205402), we get a palindrome (706936639607).

The spelling of 204502434205 in words is "two hundred four billion, five hundred two million, four hundred thirty-four thousand, two hundred five".