10666499 has 2 divisors, whose sum is σ = 10666500. Its totient is φ = 10666498.

The previous prime is 10666493. The next prime is 10666517. The reversal of 10666499 is 99466601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10666499 - 2¹⁶ = 10600963 is a prime.

It is a super-2 number, since 2×10666499² = 227548401834002, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10666493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5333249 + 5333250.

It is an arithmetic number, because the mean of its divisors is an integer number (5333250).

Almost surely, 2^10666499 is an apocalyptic number.

10666499 is a deficient number, since it is larger than the sum of its proper divisors (1).

10666499 is an equidigital number, since it uses as much as digits as its factorization.

10666499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 10666499 is about 3265.9606549988. The cubic root of 10666499 is about 220.1273298721.

The spelling of 10666499 in words is "ten million, six hundred sixty-six thousand, four hundred ninety-nine".