220331065 has 16 divisors (see below), whose sum is σ = 271058688. Its totient is φ = 171853056.

The previous prime is 220331047. The next prime is 220331077. The reversal of 220331065 is 560133022.

It is not a de Polignac number, because 220331065 - 2²⁵ = 186776633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64849 + ... + 68161.

It is an arithmetic number, because the mean of its divisors is an integer number (16941168).

Almost surely, 2^220331065 is an apocalyptic number.

It is an amenable number.

220331065 is a deficient number, since it is larger than the sum of its proper divisors (50727623).

220331065 is a wasteful number, since it uses less digits than its factorization.

220331065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3648.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 220331065 is about 14843.5529776398. The cubic root of 220331065 is about 603.9837365692.

Adding to 220331065 its reverse (560133022), we get a palindrome (780464087).

The spelling of 220331065 in words is "two hundred twenty million, three hundred thirty-one thousand, sixty-five".