205535322005 has 16 divisors (see below), whose sum is σ = 265732233984. Its totient is φ = 151712869440.

The previous prime is 205535321923. The next prime is 205535322017. The reversal of 205535322005 is 500223535502.

It is a happy number.

It is not a de Polignac number, because 205535322005 - 2⁸ = 205535321749 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, 550061 + ... + 844770.

It is an arithmetic number, because the mean of its divisors is an integer number (16608264624).

Almost surely, 2^205535322005 is an apocalyptic number.

It is an amenable number.

205535322005 is a deficient number, since it is larger than the sum of its proper divisors (60196911979).

205535322005 is a wasteful number, since it uses less digits than its factorization.

205535322005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397116.

The product of its (nonzero) digits is 45000, while the sum is 32.

Adding to 205535322005 its reverse (500223535502), we get a palindrome (705758857507).

The spelling of 205535322005 in words is "two hundred five billion, five hundred thirty-five million, three hundred twenty-two thousand, five".