204254642256 has 80 divisors (see below), whose sum is σ = 606523453824. Its totient is φ = 58021120512.

The previous prime is 204254642219. The next prime is 204254642261. The reversal of 204254642256 is 652246452402.

204254642256 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent 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, 1698811 + ... + 1815066.

Almost surely, 2^204254642256 is an apocalyptic number.

It is an amenable number.

204254642256 is an abundant number, since it is smaller than the sum of its proper divisors (402268811568).

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

204254642256 is a wasteful number, since it uses less digits than its factorization.

204254642256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514068 (or 3514062 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 42.

It can be divided in two parts, 2042546 and 42256, that added together give a palindrome (2084802).

The spelling of 204254642256 in words is "two hundred four billion, two hundred fifty-four million, six hundred forty-two thousand, two hundred fifty-six".