204220434105 has 12 divisors (see below), whose sum is σ = 353982085860. Its totient is φ = 108917564832.

The previous prime is 204220434059. The next prime is 204220434161. The reversal of 204220434105 is 501434022402.

204220434105 is a `hidden beast` number, since 2 + 0 + 4 + 220 + 434 + 1 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 124228756521 + 79991677584 = 352461^2 + 282828^2 .

It is not a de Polignac number, because 204220434105 - 2¹¹ = 204220432057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2269115890 + ... + 2269115979.

It is an arithmetic number, because the mean of its divisors is an integer number (29498507155).

Almost surely, 2^204220434105 is an apocalyptic number.

It is an amenable number.

204220434105 is a deficient number, since it is larger than the sum of its proper divisors (149761651755).

204220434105 is a wasteful number, since it uses less digits than its factorization.

204220434105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4538231880 (or 4538231877 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 204220434105 its reverse (501434022402), we get a palindrome (705654456507).

The spelling of 204220434105 in words is "two hundred four billion, two hundred twenty million, four hundred thirty-four thousand, one hundred five".