5666668 has 12 divisors (see below), whose sum is σ = 11333392. Its totient is φ = 2428560.

The previous prime is 5666641. The next prime is 5666677. The reversal of 5666668 is 8666665.

5666668 is an admirable number.

It is a super-2 number, since 2×5666668² = 64222252444448, which contains 22 as substring.

It is a plaindrome in base 10.

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, 101163 + ... + 101218.

Almost surely, 2^5666668 is an apocalyptic number.

It is an amenable number.

5666668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5666668 is a wasteful number, since it uses less digits than its factorization.

5666668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202392 (or 202390 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 5666668 is about 2380.4764229036. The cubic root of 5666668 is about 178.2827220243.

The spelling of 5666668 in words is "five million, six hundred sixty-six thousand, six hundred sixty-eight".