220111345643 has 8 divisors (see below), whose sum is σ = 254382294240. Its totient is φ = 186547014720.

The previous prime is 220111345633. The next prime is 220111345651. The reversal of 220111345643 is 346543111022.

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

It is a cyclic number.

It is not a de Polignac number, because 220111345643 - 2¹² = 220111341547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220111345633) 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, 176653748 + ... + 176654993.

It is an arithmetic number, because the mean of its divisors is an integer number (31797786780).

Almost surely, 2^220111345643 is an apocalyptic number.

220111345643 is a deficient number, since it is larger than the sum of its proper divisors (34270948597).

220111345643 is an equidigital number, since it uses as much as digits as its factorization.

220111345643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353308837.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 220111345643 its reverse (346543111022), we get a palindrome (566654456665).

The spelling of 220111345643 in words is "two hundred twenty billion, one hundred eleven million, three hundred forty-five thousand, six hundred forty-three".