10686664 has 32 divisors (see below), whose sum is σ = 21268800. Its totient is φ = 5019840.

The previous prime is 10686653. The next prime is 10686667. The reversal of 10686664 is 46668601.

It is a super-2 number, since 2×10686664² = 228409574897792, which contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (10686667) 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, 25174 + ... + 25594.

It is an arithmetic number, because the mean of its divisors is an integer number (664650).

Almost surely, 2^10686664 is an apocalyptic number.

It is an amenable number.

10686664 is a deficient number, since it is larger than the sum of its proper divisors (10582136).

10686664 is a wasteful number, since it uses less digits than its factorization.

10686664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 10686664 is about 3269.0463441193. The cubic root of 10686664 is about 220.2659593423.

The spelling of 10686664 in words is "ten million, six hundred eighty-six thousand, six hundred sixty-four".