220610065 has 12 divisors (see below), whose sum is σ = 286663644. Its totient is φ = 162911424.

The previous prime is 220610063. The next prime is 220610077. The reversal of 220610065 is 560016022.

It can be written as a sum of positive squares in 6 ways, for example, as 9431041 + 211179024 = 3071^2 + 14532^2 .

It is not a de Polignac number, because 220610065 - 2¹ = 220610063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220610063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129694 + ... + 131383.

It is an arithmetic number, because the mean of its divisors is an integer number (23888637).

Almost surely, 2^220610065 is an apocalyptic number.

It is an amenable number.

220610065 is a deficient number, since it is larger than the sum of its proper divisors (66053579).

220610065 is a wasteful number, since it uses less digits than its factorization.

220610065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261108 (or 261095 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 220610065 is about 14852.9480238773. The cubic root of 220610065 is about 604.2385657966.

Adding to 220610065 its reverse (560016022), we get a palindrome (780626087).

The spelling of 220610065 in words is "two hundred twenty million, six hundred ten thousand, sixty-five".