10566565663 has 2 divisors, whose sum is σ = 10566565664. Its totient is φ = 10566565662.

The previous prime is 10566565651. The next prime is 10566565697. The reversal of 10566565663 is 36656566501.

It is a weak prime.

It is an emirp because it is prime and its reverse (36656566501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10566565663 - 2⁹ = 10566565151 is a prime.

It is a super-2 number, since 2×10566565663² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10566565463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5283282831 + 5283282832.

It is an arithmetic number, because the mean of its divisors is an integer number (5283282832).

Almost surely, 2^10566565663 is an apocalyptic number.

10566565663 is a deficient number, since it is larger than the sum of its proper divisors (1).

10566565663 is an equidigital number, since it uses as much as digits as its factorization.

10566565663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916000, while the sum is 49.

The spelling of 10566565663 in words is "ten billion, five hundred sixty-six million, five hundred sixty-five thousand, six hundred sixty-three".