5666659 has 8 divisors (see below), whose sum is σ = 5826240. Its totient is φ = 5509416.

The previous prime is 5666641. The next prime is 5666677. The reversal of 5666659 is 9566665.

It is an interprime number because it is at equal distance from previous prime (5666641) and next prime (5666677).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5666659 - 2¹¹ = 5664611 is a prime.

It is a super-2 number, since 2×5666659² = 64222048444562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5661659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5052 + ... + 6070.

It is an arithmetic number, because the mean of its divisors is an integer number (728280).

Almost surely, 2^5666659 is an apocalyptic number.

5666659 is a deficient number, since it is larger than the sum of its proper divisors (159581).

5666659 is a wasteful number, since it uses less digits than its factorization.

5666659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169.

The product of its digits is 291600, while the sum is 43.

The square root of 5666659 is about 2380.4745325250. The cubic root of 5666659 is about 178.2826276393.

It can be divided in two parts, 566 and 6659, that added together give a square (7225 = 85²).

The spelling of 5666659 in words is "five million, six hundred sixty-six thousand, six hundred fifty-nine".