204555728080804 has 9 divisors (see below), whose sum is σ = 357972574199457. Its totient is φ = 102277849738104.

The previous prime is 204555728080687. The next prime is 204555728080843. The reversal of 204555728080804 is 408080827555402.

It is a happy number.

The square root of 204555728080804 is 14302298.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8050282639204 + 196505445441600 = 2837302^2 + 14018040^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 25029022 + ... + 32180170.

Almost surely, 2^{204555728080804} is an apocalyptic number.

204555728080804 is the 14302298-th square number.

It is an amenable number.

204555728080804 is a deficient number, since it is larger than the sum of its proper divisors (153416846118653).

204555728080804 is an frugal number, since it uses more digits than its factorization.

204555728080804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14302302 (or 7151151 counting only the distinct ones).

The product of its (nonzero) digits is 28672000, while the sum is 58.

The spelling of 204555728080804 in words is "two hundred four trillion, five hundred fifty-five billion, seven hundred twenty-eight million, eighty thousand, eight hundred four".