204456540256 has 24 divisors (see below), whose sum is σ = 404328867264. Its totient is φ = 101769843840.

The previous prime is 204456540227. The next prime is 204456540257. The reversal of 204456540256 is 652045654402.

It is a happy number.

204456540256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204456540257) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14318575 + ... + 14332846.

It is an arithmetic number, because the mean of its divisors is an integer number (16847036136).

Almost surely, 2^204456540256 is an apocalyptic number.

It is an amenable number.

204456540256 is a deficient number, since it is larger than the sum of its proper divisors (199872327008).

204456540256 is a wasteful number, since it uses less digits than its factorization.

204456540256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28651654 (or 28651646 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 43.

The spelling of 204456540256 in words is "two hundred four billion, four hundred fifty-six million, five hundred forty thousand, two hundred fifty-six".