217105600204 has 12 divisors (see below), whose sum is σ = 380058942928. Its totient is φ = 108517330800.

The previous prime is 217105600193. The next prime is 217105600213. The reversal of 217105600204 is 402006501712.

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, 8853552 + ... + 8878039.

Almost surely, 2^217105600204 is an apocalyptic number.

It is an amenable number.

217105600204 is a deficient number, since it is larger than the sum of its proper divisors (162953342724).

217105600204 is a wasteful number, since it uses less digits than its factorization.

217105600204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17734656 (or 17734654 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 217105600204 in words is "two hundred seventeen billion, one hundred five million, six hundred thousand, two hundred four".