20544303232 has 16 divisors (see below), whose sum is σ = 40928104350. Its totient is φ = 10272151552.

The previous prime is 20544303137. The next prime is 20544303233. The reversal of 20544303232 is 23230344502.

It can be written as a sum of positive squares in only one way, i.e., 13376310336 + 7167992896 = 115656^2 + 84664^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 20544303232.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80251057 + ... + 80251312.

Almost surely, 2^20544303232 is an apocalyptic number.

It is an amenable number.

20544303232 is a deficient number, since it is larger than the sum of its proper divisors (20383801118).

20544303232 is an equidigital number, since it uses as much as digits as its factorization.

20544303232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160502383 (or 160502371 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 28.

Adding to 20544303232 its reverse (23230344502), we get a palindrome (43774647734).

The spelling of 20544303232 in words is "twenty billion, five hundred forty-four million, three hundred three thousand, two hundred thirty-two".