2175330065 has 4 divisors (see below), whose sum is σ = 2610396084. Its totient is φ = 1740264048.

The previous prime is 2175330019. The next prime is 2175330067. The reversal of 2175330065 is 5600335712.

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 1483482256 + 691847809 = 38516^2 + 26303^2 .

It is a cyclic number.

It is not a de Polignac number, because 2175330065 - 2¹² = 2175325969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2175330067) 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 3 ways as a sum of consecutive naturals, for example, 217533002 + ... + 217533011.

It is an arithmetic number, because the mean of its divisors is an integer number (652599021).

Almost surely, 2^2175330065 is an apocalyptic number.

It is an amenable number.

2175330065 is a deficient number, since it is larger than the sum of its proper divisors (435066019).

2175330065 is an equidigital number, since it uses as much as digits as its factorization.

2175330065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435066018.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 2175330065 is about 46640.4337994406. The cubic root of 2175330065 is about 1295.7117209951.

Adding to 2175330065 its reverse (5600335712), we get a palindrome (7775665777).

The spelling of 2175330065 in words is "two billion, one hundred seventy-five million, three hundred thirty thousand, sixty-five".