1166681353 has 2 divisors, whose sum is σ = 1166681354. Its totient is φ = 1166681352.

The previous prime is 1166681323. The next prime is 1166681381. The reversal of 1166681353 is 3531866611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 816130624 + 350550729 = 28568^2 + 18723^2 .

It is a cyclic number.

It is not a de Polignac number, because 1166681353 - 2⁹ = 1166680841 is a prime.

It is a super-2 number, since 2×1166681353² = 2722290758875821218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1166681323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583340676 + 583340677.

It is an arithmetic number, because the mean of its divisors is an integer number (583340677).

Almost surely, 2^1166681353 is an apocalyptic number.

It is an amenable number.

1166681353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166681353 is an equidigital number, since it uses as much as digits as its factorization.

1166681353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 40.

The square root of 1166681353 is about 34156.7175384287. The cubic root of 1166681353 is about 1052.7310169319.

The spelling of 1166681353 in words is "one billion, one hundred sixty-six million, six hundred eighty-one thousand, three hundred fifty-three".