10666716653 has 2 divisors, whose sum is σ = 10666716654. Its totient is φ = 10666716652.

The previous prime is 10666716649. The next prime is 10666716659. The reversal of 10666716653 is 35661766601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8174510569 + 2492206084 = 90413^2 + 49922^2 .

It is a cyclic number.

It is not a de Polignac number, because 10666716653 - 2² = 10666716649 is a prime.

It is a super-2 number, since 2×10666716653² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10666716598 and 10666716607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10666716659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5333358326 + 5333358327.

It is an arithmetic number, because the mean of its divisors is an integer number (5333358327).

Almost surely, 2^10666716653 is an apocalyptic number.

It is an amenable number.

10666716653 is a deficient number, since it is larger than the sum of its proper divisors (1).

10666716653 is an equidigital number, since it uses as much as digits as its factorization.

10666716653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 10666716653 in words is "ten billion, six hundred sixty-six million, seven hundred sixteen thousand, six hundred fifty-three".