20604302205 has 16 divisors (see below), whose sum is σ = 33030172224. Its totient is φ = 10967864960.

The previous prime is 20604302197. The next prime is 20604302219. The reversal of 20604302205 is 50220340602.

It is not a de Polignac number, because 20604302205 - 2³ = 20604302197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1310439 + ... + 1326068.

It is an arithmetic number, because the mean of its divisors is an integer number (2064385764).

Almost surely, 2^20604302205 is an apocalyptic number.

It is an amenable number.

20604302205 is a deficient number, since it is larger than the sum of its proper divisors (12425870019).

20604302205 is a wasteful number, since it uses less digits than its factorization.

20604302205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637036.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 20604302205 its reverse (50220340602), we get a palindrome (70824642807).

The spelling of 20604302205 in words is "twenty billion, six hundred four million, three hundred two thousand, two hundred five".