204500400206 has 4 divisors (see below), whose sum is σ = 306750600312. Its totient is φ = 102250200102.

The previous prime is 204500400179. The next prime is 204500400211. The reversal of 204500400206 is 602004005402.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51125100050 + ... + 51125100053.

It is an arithmetic number, because the mean of its divisors is an integer number (76687650078).

Almost surely, 2^204500400206 is an apocalyptic number.

204500400206 is a deficient number, since it is larger than the sum of its proper divisors (102250200106).

204500400206 is a wasteful number, since it uses less digits than its factorization.

204500400206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102250200105.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 204500400206 its reverse (602004005402), we get a palindrome (806504405608).

The spelling of 204500400206 in words is "two hundred four billion, five hundred million, four hundred thousand, two hundred six".