205360413254 has 4 divisors (see below), whose sum is σ = 308040619884. Its totient is φ = 102680206626.

The previous prime is 205360413239. The next prime is 205360413343. The reversal of 205360413254 is 452314063502.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51340103312 + ... + 51340103315.

It is an arithmetic number, because the mean of its divisors is an integer number (77010154971).

Almost surely, 2^205360413254 is an apocalyptic number.

205360413254 is a deficient number, since it is larger than the sum of its proper divisors (102680206630).

205360413254 is a wasteful number, since it uses less digits than its factorization.

205360413254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102680206629.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 205360413254 its reverse (452314063502), we get a palindrome (657674476756).

The spelling of 205360413254 in words is "two hundred five billion, three hundred sixty million, four hundred thirteen thousand, two hundred fifty-four".