2243566615 has 4 divisors (see below), whose sum is σ = 2692279944. Its totient is φ = 1794853288.

The previous prime is 2243566603. The next prime is 2243566673. The reversal of 2243566615 is 5166653422.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2243566615 - 2¹⁷ = 2243435543 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224356657 + ... + 224356666.

It is an arithmetic number, because the mean of its divisors is an integer number (673069986).

Almost surely, 2^2243566615 is an apocalyptic number.

2243566615 is a deficient number, since it is larger than the sum of its proper divisors (448713329).

2243566615 is an equidigital number, since it uses as much as digits as its factorization.

2243566615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448713328.

The product of its digits is 259200, while the sum is 40.

The square root of 2243566615 is about 47366.3025261630. The cubic root of 2243566615 is about 1309.1205983383.

The spelling of 2243566615 in words is "two billion, two hundred forty-three million, five hundred sixty-six thousand, six hundred fifteen".