220384165 has 4 divisors (see below), whose sum is σ = 264461004. Its totient is φ = 176307328.

The previous prime is 220384117. The next prime is 220384169. The reversal of 220384165 is 561483022.

220384165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47803396 + 172580769 = 6914^2 + 13137^2 .

It is a cyclic number.

It is not a de Polignac number, because 220384165 - 2⁷ = 220384037 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 (220384169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22038412 + ... + 22038421.

It is an arithmetic number, because the mean of its divisors is an integer number (66115251).

Almost surely, 2^220384165 is an apocalyptic number.

It is an amenable number.

220384165 is a deficient number, since it is larger than the sum of its proper divisors (44076839).

220384165 is an equidigital number, since it uses as much as digits as its factorization.

220384165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44076838.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 220384165 is about 14845.3415252058. The cubic root of 220384165 is about 604.0322528937.

It can be divided in two parts, 2203 and 84165, that added together give a palindrome (86368).

The spelling of 220384165 in words is "two hundred twenty million, three hundred eighty-four thousand, one hundred sixty-five".