20002045443 has 4 divisors (see below), whose sum is σ = 26669393928. Its totient is φ = 13334696960.

The previous prime is 20002045411. The next prime is 20002045477. The reversal of 20002045443 is 34454020002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20002045443 - 2⁵ = 20002045411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20002045403) 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 3 ways as a sum of consecutive naturals, for example, 3333674238 + ... + 3333674243.

It is an arithmetic number, because the mean of its divisors is an integer number (6667348482).

Almost surely, 2^20002045443 is an apocalyptic number.

20002045443 is a deficient number, since it is larger than the sum of its proper divisors (6667348485).

20002045443 is an equidigital number, since it uses as much as digits as its factorization.

20002045443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667348484.

The product of its (nonzero) digits is 3840, while the sum is 24.

Adding to 20002045443 its reverse (34454020002), we get a palindrome (54456065445).

The spelling of 20002045443 in words is "twenty billion, two million, forty-five thousand, four hundred forty-three".