204204343255 has 16 divisors (see below), whose sum is σ = 270077953824. Its totient is φ = 146981191680.

The previous prime is 204204343241. The next prime is 204204343271. The reversal of 204204343255 is 552343402402.

It is not a de Polignac number, because 204204343255 - 2⁷ = 204204343127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204204343255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19132842 + ... + 19143511.

It is an arithmetic number, because the mean of its divisors is an integer number (16879872114).

Almost surely, 2^204204343255 is an apocalyptic number.

204204343255 is a deficient number, since it is larger than the sum of its proper divisors (65873610569).

204204343255 is a wasteful number, since it uses less digits than its factorization.

204204343255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38276466.

The product of its (nonzero) digits is 115200, while the sum is 34.

Adding to 204204343255 its reverse (552343402402), we get a palindrome (756547745657).

The spelling of 204204343255 in words is "two hundred four billion, two hundred four million, three hundred forty-three thousand, two hundred fifty-five".