204445434558 has 32 divisors (see below), whose sum is σ = 422118807552. Its totient is φ = 65944216800.

The previous prime is 204445434541. The next prime is 204445434577. The reversal of 204445434558 is 855434544402.

It is a Curzon number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 2336160 + ... + 2422092.

It is an arithmetic number, because the mean of its divisors is an integer number (13191212736).

Almost surely, 2^204445434558 is an apocalyptic number.

204445434558 is an abundant number, since it is smaller than the sum of its proper divisors (217673372994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204445434558 is a wasteful number, since it uses less digits than its factorization.

204445434558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98760.

The product of its (nonzero) digits is 6144000, while the sum is 48.

The spelling of 204445434558 in words is "two hundred four billion, four hundred forty-five million, four hundred thirty-four thousand, five hundred fifty-eight".