220344243205 has 8 divisors (see below), whose sum is σ = 264678306552. Its totient is φ = 176098584768.

The previous prime is 220344243103. The next prime is 220344243211. The reversal of 220344243205 is 502342443022.

It can be written as a sum of positive squares in 4 ways, for example, as 27133007841 + 193211235364 = 164721^2 + 439558^2 .

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 220344243205 - 2⁹ = 220344242693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22095742 + ... + 22105711.

It is an arithmetic number, because the mean of its divisors is an integer number (33084788319).

Almost surely, 2^220344243205 is an apocalyptic number.

It is an amenable number.

220344243205 is a deficient number, since it is larger than the sum of its proper divisors (44334063347).

220344243205 is an equidigital number, since it uses as much as digits as its factorization.

220344243205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44202455.

The product of its (nonzero) digits is 46080, while the sum is 31.

Adding to 220344243205 its reverse (502342443022), we get a palindrome (722686686227).

The spelling of 220344243205 in words is "two hundred twenty billion, three hundred forty-four million, two hundred forty-three thousand, two hundred five".