8004080666 has 4 divisors (see below), whose sum is σ = 12006121002. Its totient is φ = 4002040332.

The previous prime is 8004080659. The next prime is 8004080677. The reversal of 8004080666 is 6660804008.

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

It can be written as a sum of positive squares in only one way, i.e., 6402400225 + 1601680441 = 80015^2 + 40021^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001020165 + ... + 2001020168.

Almost surely, 2^8004080666 is an apocalyptic number.

8004080666 is a deficient number, since it is larger than the sum of its proper divisors (4002040336).

8004080666 is a wasteful number, since it uses less digits than its factorization.

8004080666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002040335.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 8004080666 is about 89465.5278082011. The cubic root of 8004080666 is about 2000.3399976975.

The spelling of 8004080666 in words is "eight billion, four million, eighty thousand, six hundred sixty-six".