10647666 has 32 divisors (see below), whose sum is σ = 24693120. Its totient is φ = 3394512.

The previous prime is 10647629. The next prime is 10647667. The reversal of 10647666 is 66674601.

It is a super-2 number, since 2×10647666² = 226745582495112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10647666.

It is not an unprimeable number, because it can be changed into a prime (10647667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3045 + ... + 5528.

It is an arithmetic number, because the mean of its divisors is an integer number (771660).

Almost surely, 2^10647666 is an apocalyptic number.

10647666 is an abundant number, since it is smaller than the sum of its proper divisors (14045454).

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

10647666 is a wasteful number, since it uses less digits than its factorization.

10647666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8607 (or 8601 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 10647666 is about 3263.0761560221. The cubic root of 10647666 is about 219.9976997005.

The spelling of 10647666 in words is "ten million, six hundred forty-seven thousand, six hundred sixty-six".