204350520355205 has 32 divisors (see below), whose sum is σ = 292732111945728. Its totient is φ = 133898381812800.

The previous prime is 204350520355187. The next prime is 204350520355207. The reversal of 204350520355205 is 502553025053402.

It is not a de Polignac number, because 204350520355205 - 2⁶ = 204350520355141 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204350520355207) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 127280741 + ... + 128876250.

It is an arithmetic number, because the mean of its divisors is an integer number (9147878498304).

Almost surely, 2^{204350520355205} is an apocalyptic number.

It is an amenable number.

204350520355205 is a deficient number, since it is larger than the sum of its proper divisors (88381591590523).

204350520355205 is a wasteful number, since it uses less digits than its factorization.

204350520355205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256158017.

The product of its (nonzero) digits is 900000, while the sum is 41.

The spelling of 204350520355205 in words is "two hundred four trillion, three hundred fifty billion, five hundred twenty million, three hundred fifty-five thousand, two hundred five".