205335144450434 has 8 divisors (see below), whose sum is σ = 308770803252108. Its totient is φ = 102411543366400.

The previous prime is 205335144450413. The next prime is 205335144450473. The reversal of 205335144450434 is 434054441533502.

It can be written as a sum of positive squares in 2 ways, for example, as 205286282674225 + 48861776209 = 14327815^2 + 221047^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128014428407 + ... + 128014430010.

Almost surely, 2^{205335144450434} is an apocalyptic number.

205335144450434 is a deficient number, since it is larger than the sum of its proper divisors (103435658801674).

205335144450434 is a wasteful number, since it uses less digits than its factorization.

205335144450434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256028858820.

The product of its (nonzero) digits is 6912000, while the sum is 47.

Adding to 205335144450434 its reverse (434054441533502), we get a palindrome (639389585983936).

The spelling of 205335144450434 in words is "two hundred five trillion, three hundred thirty-five billion, one hundred forty-four million, four hundred fifty thousand, four hundred thirty-four".