204435354555354 has 32 divisors (see below), whose sum is σ = 440322927617664. Its totient is φ = 62903096660160.

The previous prime is 204435354555331. The next prime is 204435354555361. The reversal of 204435354555354 is 453555453534402.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 204435354555294 and 204435354555303.

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, 72131164 + ... + 74911784.

It is an arithmetic number, because the mean of its divisors is an integer number (13760091488052).

Almost surely, 2^{204435354555354} is an apocalyptic number.

204435354555354 is an abundant number, since it is smaller than the sum of its proper divisors (235887573062310).

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

204435354555354 is a wasteful number, since it uses less digits than its factorization.

204435354555354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3723222.

The product of its (nonzero) digits is 216000000, while the sum is 57.

The spelling of 204435354555354 in words is "two hundred four trillion, four hundred thirty-five billion, three hundred fifty-four million, five hundred fifty-five thousand, three hundred fifty-four".