20331443445 has 8 divisors (see below), whose sum is σ = 32530309536. Its totient is φ = 10843436496.

The previous prime is 20331443443. The next prime is 20331443467. The reversal of 20331443445 is 54434413302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20331443445 - 2¹ = 20331443443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331443443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677714767 + ... + 677714796.

It is an arithmetic number, because the mean of its divisors is an integer number (4066288692).

Almost surely, 2^20331443445 is an apocalyptic number.

It is an amenable number.

20331443445 is a deficient number, since it is larger than the sum of its proper divisors (12198866091).

20331443445 is a wasteful number, since it uses less digits than its factorization.

20331443445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355429571.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 20331443445 its reverse (54434413302), we get a palindrome (74765856747).

The spelling of 20331443445 in words is "twenty billion, three hundred thirty-one million, four hundred forty-three thousand, four hundred forty-five".