10681666 has 8 divisors (see below), whose sum is σ = 16248384. Its totient is φ = 5265540.

The previous prime is 10681663. The next prime is 10681679. The reversal of 10681666 is 66618601.

10681666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×10681666² = 228195977071112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10681663) 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, 37470 + ... + 37753.

It is an arithmetic number, because the mean of its divisors is an integer number (2031048).

Almost surely, 2^10681666 is an apocalyptic number.

10681666 is a deficient number, since it is larger than the sum of its proper divisors (5566718).

10681666 is an equidigital number, since it uses as much as digits as its factorization.

10681666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75296.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 10681666 is about 3268.2818115946. The cubic root of 10681666 is about 220.2316155741.

The spelling of 10681666 in words is "ten million, six hundred eighty-one thousand, six hundred sixty-six".