2223975665 has 8 divisors (see below), whose sum is σ = 2719125288. Its totient is φ = 1745610880.

The previous prime is 2223975653. The next prime is 2223975667. The reversal of 2223975665 is 5665793222.

It can be written as a sum of positive squares in 4 ways, for example, as 935381056 + 1288594609 = 30584^2 + 35897^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2223975665 - 2⁶ = 2223975601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2223975667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4195916 + ... + 4196445.

It is an arithmetic number, because the mean of its divisors is an integer number (339890661).

Almost surely, 2^2223975665 is an apocalyptic number.

It is an amenable number.

2223975665 is a deficient number, since it is larger than the sum of its proper divisors (495149623).

2223975665 is an equidigital number, since it uses as much as digits as its factorization.

2223975665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8392419.

The product of its digits is 1360800, while the sum is 47.

The square root of 2223975665 is about 47159.0464810306. The cubic root of 2223975665 is about 1305.2990149750.

The spelling of 2223975665 in words is "two billion, two hundred twenty-three million, nine hundred seventy-five thousand, six hundred sixty-five".