204655234511 has 36 divisors (see below), whose sum is σ = 260896750632. Its totient is φ = 159973579584.

The previous prime is 204655234481. The next prime is 204655234517. The reversal of 204655234511 is 115432556402.

It is a de Polignac number, because none of the positive numbers 2^k-204655234511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204655234517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 538445 + ... + 836201.

It is an arithmetic number, because the mean of its divisors is an integer number (7247131962).

Almost surely, 2^204655234511 is an apocalyptic number.

204655234511 is a deficient number, since it is larger than the sum of its proper divisors (56241516121).

204655234511 is a wasteful number, since it uses less digits than its factorization.

204655234511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297880 (or 297860 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 204655234511 in words is "two hundred four billion, six hundred fifty-five million, two hundred thirty-four thousand, five hundred eleven".