204824504465 has 16 divisors (see below), whose sum is σ = 280956790272. Its totient is φ = 140423782464.

The previous prime is 204824504459. The next prime is 204824504477. The reversal of 204824504465 is 564405428402.

It is not a de Polignac number, because 204824504465 - 2²⁸ = 204556069009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385454 + ... + 747143.

It is an arithmetic number, because the mean of its divisors is an integer number (17559799392).

Almost surely, 2^204824504465 is an apocalyptic number.

It is an amenable number.

204824504465 is a deficient number, since it is larger than the sum of its proper divisors (76132285807).

204824504465 is a wasteful number, since it uses less digits than its factorization.

204824504465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137776.

The product of its (nonzero) digits is 1228800, while the sum is 44.

The spelling of 204824504465 in words is "two hundred four billion, eight hundred twenty-four million, five hundred four thousand, four hundred sixty-five".