204204420216 has 48 divisors (see below), whose sum is σ = 582161728200. Its totient is φ = 64485605952.

The previous prime is 204204420179. The next prime is 204204420289. The reversal of 204204420216 is 612024402402.

204204420216 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 0 + 442 + 0 + 216 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 204204420216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74634751 + ... + 74637486.

Almost surely, 2^204204420216 is an apocalyptic number.

It is an amenable number.

204204420216 is an abundant number, since it is smaller than the sum of its proper divisors (377957307984).

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

204204420216 is a wasteful number, since it uses less digits than its factorization.

204204420216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149272268 (or 149272261 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 204204420216 its reverse (612024402402), we get a palindrome (816228822618).

The spelling of 204204420216 in words is "two hundred four billion, two hundred four million, four hundred twenty thousand, two hundred sixteen".