10666517 has 2 divisors, whose sum is σ = 10666518. Its totient is φ = 10666516.

The previous prime is 10666499. The next prime is 10666529. The reversal of 10666517 is 71566601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9821956 + 844561 = 3134^2 + 919^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10666517 is a prime.

It is a super-4 number, since 4×10666517⁴ (a number of 29 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10666547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5333258 + 5333259.

It is an arithmetic number, because the mean of its divisors is an integer number (5333259).

Almost surely, 2^10666517 is an apocalyptic number.

It is an amenable number.

10666517 is a deficient number, since it is larger than the sum of its proper divisors (1).

10666517 is an equidigital number, since it uses as much as digits as its factorization.

10666517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 10666517 is about 3265.9634106952. The cubic root of 10666517 is about 220.1274536956.

The spelling of 10666517 in words is "ten million, six hundred sixty-six thousand, five hundred seventeen".