204402434255 has 16 divisors (see below), whose sum is σ = 253580516544. Its totient is φ = 158048755200.

The previous prime is 204402434231. The next prime is 204402434293. The reversal of 204402434255 is 552434204402.

It is not a de Polignac number, because 204402434255 - 2⁶ = 204402434191 is a prime.

It is a Duffinian number.

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, 3630602 + ... + 3686471.

It is an arithmetic number, because the mean of its divisors is an integer number (15848782284).

Almost surely, 2^204402434255 is an apocalyptic number.

204402434255 is a deficient number, since it is larger than the sum of its proper divisors (49178082289).

204402434255 is a wasteful number, since it uses less digits than its factorization.

204402434255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7317266.

The product of its (nonzero) digits is 153600, while the sum is 35.

Adding to 204402434255 its reverse (552434204402), we get a palindrome (756836638657).

The spelling of 204402434255 in words is "two hundred four billion, four hundred two million, four hundred thirty-four thousand, two hundred fifty-five".