204210534536 has 16 divisors (see below), whose sum is σ = 386283203100. Its totient is φ = 101201680384.

The previous prime is 204210534391. The next prime is 204210534553. The reversal of 204210534536 is 635435012402.

It can be written as a sum of positive squares in 2 ways, for example, as 202275062500 + 1935472036 = 449750^2 + 43994^2 .

It is a junction number, because it is equal to n+sod(n) for n = 204210534496 and 204210534505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112947401 + ... + 112949208.

Almost surely, 2^204210534536 is an apocalyptic number.

It is an amenable number.

204210534536 is a deficient number, since it is larger than the sum of its proper divisors (182072668564).

204210534536 is a wasteful number, since it uses less digits than its factorization.

204210534536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225896728 (or 225896724 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 204210534536 its reverse (635435012402), we get a palindrome (839645546938).

The spelling of 204210534536 in words is "two hundred four billion, two hundred ten million, five hundred thirty-four thousand, five hundred thirty-six".