20544303206 has 48 divisors (see below), whose sum is σ = 37714807872. Its totient is φ = 8357731200.

The previous prime is 20544303137. The next prime is 20544303233. The reversal of 20544303206 is 60230344502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79571 + ... + 217761.

It is an arithmetic number, because the mean of its divisors is an integer number (785725164).

Almost surely, 2^20544303206 is an apocalyptic number.

20544303206 is a deficient number, since it is larger than the sum of its proper divisors (17170504666).

20544303206 is a wasteful number, since it uses less digits than its factorization.

20544303206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138285 (or 138278 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 20544303206 its reverse (60230344502), we get a palindrome (80774647708).

The spelling of 20544303206 in words is "twenty billion, five hundred forty-four million, three hundred three thousand, two hundred six".