204131735259855 has 48 divisors (see below), whose sum is σ = 369044129258496. Its totient is φ = 96126248549760.

The previous prime is 204131735259839. The next prime is 204131735259869. The reversal of 204131735259855 is 558952537131402.

It is a happy number.

It is not a de Polignac number, because 204131735259855 - 2⁴ = 204131735259839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1750492551 + ... + 1750609160.

It is an arithmetic number, because the mean of its divisors is an integer number (7688419359552).

Almost surely, 2^{204131735259855} is an apocalyptic number.

204131735259855 is a deficient number, since it is larger than the sum of its proper divisors (164912393998641).

204131735259855 is a wasteful number, since it uses less digits than its factorization.

204131735259855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501101768 (or 3501101755 counting only the distinct ones).

The product of its (nonzero) digits is 45360000, while the sum is 60.

The spelling of 204131735259855 in words is "two hundred four trillion, one hundred thirty-one billion, seven hundred thirty-five million, two hundred fifty-nine thousand, eight hundred fifty-five".