804566668 has 12 divisors (see below), whose sum is σ = 1408289680. Its totient is φ = 402198192.

The previous prime is 804566663. The next prime is 804566669. The reversal of 804566668 is 866665408.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (804566663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3073 + ... + 40231.

Almost surely, 2^804566668 is an apocalyptic number.

It is an amenable number.

804566668 is a deficient number, since it is larger than the sum of its proper divisors (603723012).

804566668 is a wasteful number, since it uses less digits than its factorization.

804566668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42576 (or 42574 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 49.

The square root of 804566668 is about 28364.8844171803. The cubic root of 804566668 is about 930.0807992388.

The spelling of 804566668 in words is "eight hundred four million, five hundred sixty-six thousand, six hundred sixty-eight".