205345013444205 has 16 divisors (see below), whose sum is σ = 336192766198080. Its totient is φ = 106970425607808.

The previous prime is 205345013444183. The next prime is 205345013444273. The reversal of 205345013444205 is 502444310543502.

It is not a de Polignac number, because 205345013444205 - 2⁸ = 205345013443949 is a prime.

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, 159182180320 + ... + 159182181609.

It is an arithmetic number, because the mean of its divisors is an integer number (21012047887380).

Almost surely, 2^{205345013444205} is an apocalyptic number.

It is an amenable number.

205345013444205 is a deficient number, since it is larger than the sum of its proper divisors (130847752753875).

205345013444205 is a wasteful number, since it uses less digits than its factorization.

205345013444205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318364361980.

The product of its (nonzero) digits is 1152000, while the sum is 42.

Adding to 205345013444205 its reverse (502444310543502), we get a palindrome (707789323987707).

The spelling of 205345013444205 in words is "two hundred five trillion, three hundred forty-five billion, thirteen million, four hundred forty-four thousand, two hundred five".