10581668 has 6 divisors (see below), whose sum is σ = 18517926. Its totient is φ = 5290832.

The previous prime is 10581661. The next prime is 10581671. The reversal of 10581668 is 86618501.

It can be written as a sum of positive squares in only one way, i.e., 9597604 + 984064 = 3098^2 + 992^2 .

It is a super-2 number, since 2×10581668² = 223943395324448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10581661) 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 as a sum of consecutive naturals, namely, 1322705 + ... + 1322712.

It is an arithmetic number, because the mean of its divisors is an integer number (3086321).

Almost surely, 2^10581668 is an apocalyptic number.

It is an amenable number.

10581668 is a deficient number, since it is larger than the sum of its proper divisors (7936258).

10581668 is a wasteful number, since it uses less digits than its factorization.

10581668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645421 (or 2645419 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 10581668 is about 3252.9475864207. The cubic root of 10581668 is about 219.5422161317.

The spelling of 10581668 in words is "ten million, five hundred eighty-one thousand, six hundred sixty-eight".