204235554205 has 16 divisors (see below), whose sum is σ = 260264790720. Its totient is φ = 153419228928.

The previous prime is 204235554203. The next prime is 204235554223. The reversal of 204235554205 is 502455532402.

It is a cyclic number.

It is not a de Polignac number, because 204235554205 - 2¹ = 204235554203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204235554203) 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 15 ways as a sum of consecutive naturals, for example, 9501867 + ... + 9523336.

It is an arithmetic number, because the mean of its divisors is an integer number (16266549420).

Almost surely, 2^204235554205 is an apocalyptic number.

It is an amenable number.

204235554205 is a deficient number, since it is larger than the sum of its proper divisors (56029236515).

204235554205 is a wasteful number, since it uses less digits than its factorization.

204235554205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19025340.

The product of its (nonzero) digits is 240000, while the sum is 37.

The spelling of 204235554205 in words is "two hundred four billion, two hundred thirty-five million, five hundred fifty-four thousand, two hundred five".