204153635343 has 16 divisors (see below), whose sum is σ = 317710218240. Its totient is φ = 114177108576.

The previous prime is 204153635317. The next prime is 204153635359. The reversal of 204153635343 is 343536351402.

It is not a de Polignac number, because 204153635343 - 2⁵ = 204153635311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204153635383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103420308 + ... + 103422281.

It is an arithmetic number, because the mean of its divisors is an integer number (19856888640).

Almost surely, 2^204153635343 is an apocalyptic number.

204153635343 is a deficient number, since it is larger than the sum of its proper divisors (113556582897).

204153635343 is a wasteful number, since it uses less digits than its factorization.

204153635343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206842646.

The product of its (nonzero) digits is 388800, while the sum is 39.

Adding to 204153635343 its reverse (343536351402), we get a palindrome (547689986745).

The spelling of 204153635343 in words is "two hundred four billion, one hundred fifty-three million, six hundred thirty-five thousand, three hundred forty-three".