220340535443 has 4 divisors (see below), whose sum is σ = 251817754800. Its totient is φ = 188863316088.

The previous prime is 220340535361. The next prime is 220340535449. The reversal of 220340535443 is 344535043022.

It is a happy number.

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 220340535443 - 2¹² = 220340531347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220340535449) 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, 15738609668 + ... + 15738609681.

It is an arithmetic number, because the mean of its divisors is an integer number (62954438700).

Almost surely, 2^220340535443 is an apocalyptic number.

220340535443 is a deficient number, since it is larger than the sum of its proper divisors (31477219357).

220340535443 is an equidigital number, since it uses as much as digits as its factorization.

220340535443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31477219356.

The product of its (nonzero) digits is 172800, while the sum is 35.

Adding to 220340535443 its reverse (344535043022), we get a palindrome (564875578465).

The spelling of 220340535443 in words is "two hundred twenty billion, three hundred forty million, five hundred thirty-five thousand, four hundred forty-three".