204424364556 has 18 divisors (see below), whose sum is σ = 516739366052. Its totient is φ = 68141454840.

The previous prime is 204424364537. The next prime is 204424364569. The reversal of 204424364556 is 655463424402.

It is a happy number.

204424364556 is a `hidden beast` number, since 2 + 0 + 44 + 24 + 36 + 4 + 556 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2839227250 + ... + 2839227321.

Almost surely, 2^204424364556 is an apocalyptic number.

It is an amenable number.

204424364556 is an abundant number, since it is smaller than the sum of its proper divisors (312315001496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204424364556 is a wasteful number, since it uses less digits than its factorization.

204424364556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5678454581 (or 5678454576 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 45.

Adding to 204424364556 its reverse (655463424402), we get a palindrome (859887788958).

The spelling of 204424364556 in words is "two hundred four billion, four hundred twenty-four million, three hundred sixty-four thousand, five hundred fifty-six".