10666899 has 12 divisors (see below), whose sum is σ = 15436512. Its totient is φ = 7098000.

The previous prime is 10666891. The next prime is 10666907. The reversal of 10666899 is 99866601.

It is an interprime number because it is at equal distance from previous prime (10666891) and next prime (10666907).

It is not a de Polignac number, because 10666899 - 2³ = 10666891 is a prime.

It is a super-2 number, since 2×10666899² = 227565468552402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10666891) 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 11 ways as a sum of consecutive naturals, for example, 7549 + ... + 8849.

It is an arithmetic number, because the mean of its divisors is an integer number (1286376).

Almost surely, 2^10666899 is an apocalyptic number.

10666899 is a deficient number, since it is larger than the sum of its proper divisors (4769613).

10666899 is a wasteful number, since it uses less digits than its factorization.

10666899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218 (or 2215 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 10666899 is about 3266.0218921495. The cubic root of 10666899 is about 220.1300814725.

The spelling of 10666899 in words is "ten million, six hundred sixty-six thousand, eight hundred ninety-nine".