1166688866611 has 2 divisors, whose sum is σ = 1166688866612. Its totient is φ = 1166688866610.

The previous prime is 1166688866593. The next prime is 1166688866621.

1166688866611 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166688866611 is a prime.

It is a super-2 number, since 2×1166688866611² (a number of 25 digits) contains 22 as substring.

It is a zygodrome in base 10.

It is not a weakly prime, because it can be changed into another prime (1166688866621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583344433305 + 583344433306.

It is an arithmetic number, because the mean of its divisors is an integer number (583344433306).

Almost surely, 2^{1166688866611} is an apocalyptic number.

1166688866611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166688866611 is an equidigital number, since it uses as much as digits as its factorization.

1166688866611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23887872, while the sum is 64.

The spelling of 1166688866611 in words is "one trillion, one hundred sixty-six billion, six hundred eighty-eight million, eight hundred sixty-six thousand, six hundred eleven".