20344330220543 has 8 divisors (see below), whose sum is σ = 23251295575680. Its totient is φ = 17437522982040.

The previous prime is 20344330220537. The next prime is 20344330220561. The reversal of 20344330220543 is 34502203344302.

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

It is not a de Polignac number, because 20344330220543 - 2³⁴ = 20327150351359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344330226543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39253313 + ... + 39768218.

It is an arithmetic number, because the mean of its divisors is an integer number (2906411946960).

Almost surely, 2^{20344330220543} is an apocalyptic number.

20344330220543 is a deficient number, since it is larger than the sum of its proper divisors (2906965355137).

20344330220543 is an equidigital number, since it uses as much as digits as its factorization.

20344330220543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79058317.

The product of its (nonzero) digits is 207360, while the sum is 35.

Adding to 20344330220543 its reverse (34502203344302), we get a palindrome (54846533564845).

The spelling of 20344330220543 in words is "twenty trillion, three hundred forty-four billion, three hundred thirty million, two hundred twenty thousand, five hundred forty-three".