20544303236 has 12 divisors (see below), whose sum is σ = 35955653328. Its totient is φ = 10271259432.

The previous prime is 20544303233. The next prime is 20544303257. The reversal of 20544303236 is 63230344502.

It is not an unprimeable number, because it can be changed into a prime (20544303233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169826 + ... + 264441.

It is an arithmetic number, because the mean of its divisors is an integer number (2996304444).

Almost surely, 2^20544303236 is an apocalyptic number.

It is an amenable number.

20544303236 is a deficient number, since it is larger than the sum of its proper divisors (15411350092).

20544303236 is a wasteful number, since it uses less digits than its factorization.

20544303236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446098 (or 446096 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 20544303236 its reverse (63230344502), we get a palindrome (83774647738).

The spelling of 20544303236 in words is "twenty billion, five hundred forty-four million, three hundred three thousand, two hundred thirty-six".