20200220443 has 16 divisors (see below), whose sum is σ = 22917242880. Its totient is φ = 17650924704.

The previous prime is 20200220413. The next prime is 20200220497. The reversal of 20200220443 is 34402200202.

It is a cyclic number.

It is not a de Polignac number, because 20200220443 - 2¹³ = 20200212251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20200220443.

It is not an unprimeable number, because it can be changed into a prime (20200220413) 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 in 15 ways as a sum of consecutive naturals, for example, 285030 + ... + 348772.

It is an arithmetic number, because the mean of its divisors is an integer number (1432327680).

Almost surely, 2^20200220443 is an apocalyptic number.

20200220443 is a deficient number, since it is larger than the sum of its proper divisors (2717022437).

20200220443 is a wasteful number, since it uses less digits than its factorization.

20200220443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65058.

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 20200220443 its reverse (34402200202), we get a palindrome (54602420645).

The spelling of 20200220443 in words is "twenty billion, two hundred million, two hundred twenty thousand, four hundred forty-three".