20659884053 has 2 divisors, whose sum is σ = 20659884054. Its totient is φ = 20659884052.

The previous prime is 20659884043. The next prime is 20659884071. The reversal of 20659884053 is 35048895602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20618949649 + 40934404 = 143593^2 + 6398^2 .

It is a cyclic number.

It is not a de Polignac number, because 20659884053 - 2²⁴ = 20643106837 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20659883992 and 20659884010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20659884043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10329942026 + 10329942027.

It is an arithmetic number, because the mean of its divisors is an integer number (10329942027).

Almost surely, 2^20659884053 is an apocalyptic number.

It is an amenable number.

20659884053 is a deficient number, since it is larger than the sum of its proper divisors (1).

20659884053 is an equidigital number, since it uses as much as digits as its factorization.

20659884053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 20659884053 in words is "twenty billion, six hundred fifty-nine million, eight hundred eighty-four thousand, fifty-three".