204256555422 has 16 divisors (see below), whose sum is σ = 413684163840. Its totient is φ = 67223676312.

The previous prime is 204256555397. The next prime is 204256555427. The reversal of 204256555422 is 224555652402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204256555427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215460028 + ... + 215460975.

It is an arithmetic number, because the mean of its divisors is an integer number (25855260240).

Almost surely, 2^204256555422 is an apocalyptic number.

204256555422 is an abundant number, since it is smaller than the sum of its proper divisors (209427608418).

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

204256555422 is a wasteful number, since it uses less digits than its factorization.

204256555422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430921087.

The product of its (nonzero) digits is 960000, while the sum is 42.

The spelling of 204256555422 in words is "two hundred four billion, two hundred fifty-six million, five hundred fifty-five thousand, four hundred twenty-two".