204425221466 has 4 divisors (see below), whose sum is σ = 306637832202. Its totient is φ = 102212610732.

The previous prime is 204425221433. The next prime is 204425221471. The reversal of 204425221466 is 664122524402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 183188280025 + 21236941441 = 428005^2 + 145729^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51106305365 + ... + 51106305368.

Almost surely, 2^204425221466 is an apocalyptic number.

204425221466 is a deficient number, since it is larger than the sum of its proper divisors (102212610736).

204425221466 is a wasteful number, since it uses less digits than its factorization.

204425221466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102212610735.

The product of its (nonzero) digits is 184320, while the sum is 38.

Adding to 204425221466 its reverse (664122524402), we get a palindrome (868547745868).

The spelling of 204425221466 in words is "two hundred four billion, four hundred twenty-five million, two hundred twenty-one thousand, four hundred sixty-six".