204504503542 has 16 divisors (see below), whose sum is σ = 321529420800. Its totient is φ = 97367902632.

The previous prime is 204504503527. The next prime is 204504503563. The reversal of 204504503542 is 245305405402.

It is a junction number, because it is equal to n+sod(n) for n = 204504503498 and 204504503507.

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 7 ways as a sum of consecutive naturals, for example, 9957792 + ... + 9978307.

It is an arithmetic number, because the mean of its divisors is an integer number (20095588800).

Almost surely, 2^204504503542 is an apocalyptic number.

204504503542 is a deficient number, since it is larger than the sum of its proper divisors (117024917258).

204504503542 is a wasteful number, since it uses less digits than its factorization.

204504503542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19936347.

The product of its (nonzero) digits is 96000, while the sum is 34.

Adding to 204504503542 its reverse (245305405402), we get a palindrome (449809908944).

The spelling of 204504503542 in words is "two hundred four billion, five hundred four million, five hundred three thousand, five hundred forty-two".