204163216 has 20 divisors (see below), whose sum is σ = 396823932. Its totient is φ = 101757056.

The previous prime is 204163181. The next prime is 204163243. The reversal of 204163216 is 612361402.

It can be written as a sum of positive squares in 2 ways, for example, as 87609600 + 116553616 = 9360^2 + 10796^2 .

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, 15055 + ... + 25198.

Almost surely, 2^204163216 is an apocalyptic number.

It is an amenable number.

204163216 is a deficient number, since it is larger than the sum of its proper divisors (192660716).

204163216 is a wasteful number, since it uses less digits than its factorization.

204163216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40578 (or 40572 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 204163216 is about 14288.5694175449. The cubic root of 204163216 is about 588.8334856360.

It can be divided in two parts, 20416 and 3216, that added together give a palindrome (23632).

The spelling of 204163216 in words is "two hundred four million, one hundred sixty-three thousand, two hundred sixteen".