205052404405 has 8 divisors (see below), whose sum is σ = 251298266112. Its totient is φ = 160551669648.

The previous prime is 205052404387. The next prime is 205052404477. The reversal of 205052404405 is 504404250502.

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

It is a cyclic number.

It is not a de Polignac number, because 205052404405 - 2³³ = 196462469813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436281477 + ... + 436281946.

It is an arithmetic number, because the mean of its divisors is an integer number (31412283264).

Almost surely, 2^205052404405 is an apocalyptic number.

It is an amenable number.

205052404405 is a deficient number, since it is larger than the sum of its proper divisors (46245861707).

205052404405 is an equidigital number, since it uses as much as digits as its factorization.

205052404405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872563475.

The product of its (nonzero) digits is 32000, while the sum is 31.

Adding to 205052404405 its reverse (504404250502), we get a palindrome (709456654907).

The spelling of 205052404405 in words is "two hundred five billion, fifty-two million, four hundred four thousand, four hundred five".