10666818 has 12 divisors (see below), whose sum is σ = 23111478. Its totient is φ = 3555600.

The previous prime is 10666807. The next prime is 10666823. The reversal of 10666818 is 81866601.

It can be written as a sum of positive squares in only one way, i.e., 10517049 + 149769 = 3243^2 + 387^2 .

It is a super-2 number, since 2×10666818² = 227562012490248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 296283 + ... + 296318.

Almost surely, 2^10666818 is an apocalyptic number.

10666818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10666818 is an abundant number, since it is smaller than the sum of its proper divisors (12444660).

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

10666818 is a wasteful number, since it uses less digits than its factorization.

10666818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592609 (or 592606 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 10666818 is about 3266.0094917192. The cubic root of 10666818 is about 220.1295242790.

The spelling of 10666818 in words is "ten million, six hundred sixty-six thousand, eight hundred eighteen".