204555401343 has 6 divisors (see below), whose sum is σ = 295468913064. Its totient is φ = 136370267556.

The previous prime is 204555401333. The next prime is 204555401353. The reversal of 204555401343 is 343104555402.

204555401343 is a `hidden beast` number, since 20 + 4 + 55 + 540 + 1 + 3 + 43 = 666.

It is an interprime number because it is at equal distance from previous prime (204555401333) and next prime (204555401353).

It is not a de Polignac number, because 204555401343 - 2¹² = 204555397247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204555401298 and 204555401307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204555401333) 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 5 ways as a sum of consecutive naturals, for example, 11364188955 + ... + 11364188972.

It is an arithmetic number, because the mean of its divisors is an integer number (49244818844).

Almost surely, 2^204555401343 is an apocalyptic number.

204555401343 is a deficient number, since it is larger than the sum of its proper divisors (90913511721).

204555401343 is a wasteful number, since it uses less digits than its factorization.

204555401343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22728377933 (or 22728377930 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 204555401343 its reverse (343104555402), we get a palindrome (547659956745).

The spelling of 204555401343 in words is "two hundred four billion, five hundred fifty-five million, four hundred one thousand, three hundred forty-three".