204245424405 has 24 divisors (see below), whose sum is σ = 386209530720. Its totient is φ = 99028084320.

The previous prime is 204245424391. The next prime is 204245424419. The reversal of 204245424405 is 504424542402.

204245424405 is a `hidden beast` number, since 2 + 0 + 4 + 245 + 4 + 2 + 4 + 405 = 666.

It is an interprime number because it is at equal distance from previous prime (204245424391) and next prime (204245424419).

It is not a de Polignac number, because 204245424405 - 2⁵ = 204245424373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204245424405.

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 23 ways as a sum of consecutive naturals, for example, 206308015 + ... + 206309004.

It is an arithmetic number, because the mean of its divisors is an integer number (16092063780).

Almost surely, 2^204245424405 is an apocalyptic number.

It is an amenable number.

204245424405 is a deficient number, since it is larger than the sum of its proper divisors (181964106315).

204245424405 is a wasteful number, since it uses less digits than its factorization.

204245424405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412617041 (or 412617038 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 36.

Adding to 204245424405 its reverse (504424542402), we get a palindrome (708669966807).

The spelling of 204245424405 in words is "two hundred four billion, two hundred forty-five million, four hundred twenty-four thousand, four hundred five".