204523255554 has 16 divisors (see below), whose sum is σ = 409051335648. Its totient is φ = 68173614432.

The previous prime is 204523255483. The next prime is 204523255571. The reversal of 204523255554 is 455552325402.

204523255554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588774 + ... + 869310.

It is an arithmetic number, because the mean of its divisors is an integer number (25565708478).

Almost surely, 2^204523255554 is an apocalyptic number.

204523255554 is an abundant number, since it is smaller than the sum of its proper divisors (204528080094).

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

204523255554 is a wasteful number, since it uses less digits than its factorization.

204523255554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402049.

The product of its (nonzero) digits is 1200000, while the sum is 42.

The spelling of 204523255554 in words is "two hundred four billion, five hundred twenty-three million, two hundred fifty-five thousand, five hundred fifty-four".