10668566 has 4 divisors (see below), whose sum is σ = 16002852. Its totient is φ = 5334282.

The previous prime is 10668563. The next prime is 10668583. The reversal of 10668566 is 66586601.

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

It is a super-2 number, since 2×10668566² = 227636600992712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10668563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2667140 + ... + 2667143.

It is an arithmetic number, because the mean of its divisors is an integer number (4000713).

Almost surely, 2^10668566 is an apocalyptic number.

10668566 is a deficient number, since it is larger than the sum of its proper divisors (5334286).

10668566 is an equidigital number, since it uses as much as digits as its factorization.

10668566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5334285.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 10668566 is about 3266.2770856129. The cubic root of 10668566 is about 220.1415480269.

The spelling of 10668566 in words is "ten million, six hundred sixty-eight thousand, five hundred sixty-six".