10666559 has 2 divisors, whose sum is σ = 10666560. Its totient is φ = 10666558.

The previous prime is 10666547. The next prime is 10666567. The reversal of 10666559 is 95566601.

10666559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10666559 - 2¹⁶ = 10601023 is a prime.

It is a super-2 number, since 2×10666559² = 227550961800962, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10666529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5333279 + 5333280.

It is an arithmetic number, because the mean of its divisors is an integer number (5333280).

Almost surely, 2^10666559 is an apocalyptic number.

10666559 is a deficient number, since it is larger than the sum of its proper divisors (1).

10666559 is an equidigital number, since it uses as much as digits as its factorization.

10666559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 10666559 is about 3265.9698406446. The cubic root of 10666559 is about 220.1277426165.

The spelling of 10666559 in words is "ten million, six hundred sixty-six thousand, five hundred fifty-nine".