8004317665 has 4 divisors (see below), whose sum is σ = 9605181204. Its totient is φ = 6403454128.

The previous prime is 8004317647. The next prime is 8004317681. The reversal of 8004317665 is 5667134008.

It is a happy number.

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 5943793216 + 2060524449 = 77096^2 + 45393^2 .

It is a cyclic number.

It is not a de Polignac number, because 8004317665 - 2¹³ = 8004309473 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800431762 + ... + 800431771.

It is an arithmetic number, because the mean of its divisors is an integer number (2401295301).

Almost surely, 2^8004317665 is an apocalyptic number.

It is an amenable number.

8004317665 is a deficient number, since it is larger than the sum of its proper divisors (1600863539).

8004317665 is a wasteful number, since it uses less digits than its factorization.

8004317665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600863538.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 8004317665 is about 89466.8523253166. The cubic root of 8004317665 is about 2000.3597407061.

The spelling of 8004317665 in words is "eight billion, four million, three hundred seventeen thousand, six hundred sixty-five".