204301345505 has 12 divisors (see below), whose sum is σ = 258743977812. Its totient is φ = 154838913120.

The previous prime is 204301345487. The next prime is 204301345513. The reversal of 204301345505 is 505543103402.

It is a happy number.

204301345505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 90794345041 + 113507000464 = 301321^2 + 336908^2 .

It is not a de Polignac number, because 204301345505 - 2¹⁴ = 204301329121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 56591366 + ... + 56594975.

It is an arithmetic number, because the mean of its divisors is an integer number (21561998151).

Almost surely, 2^204301345505 is an apocalyptic number.

It is an amenable number.

204301345505 is a deficient number, since it is larger than the sum of its proper divisors (54442632307).

204301345505 is a wasteful number, since it uses less digits than its factorization.

204301345505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113186384 (or 113186365 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 204301345505 its reverse (505543103402), we get a palindrome (709844448907).

The spelling of 204301345505 in words is "two hundred four billion, three hundred one million, three hundred forty-five thousand, five hundred five".