1166893853 has 2 divisors, whose sum is σ = 1166893854. Its totient is φ = 1166893852.

The previous prime is 1166893813. The next prime is 1166893867. The reversal of 1166893853 is 3583986611.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1161310084 + 5583769 = 34078^2 + 2363^2 .

It is a cyclic number.

It is not a de Polignac number, because 1166893853 - 2⁶ = 1166893789 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1166893813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583446926 + 583446927.

It is an arithmetic number, because the mean of its divisors is an integer number (583446927).

Almost surely, 2^1166893853 is an apocalyptic number.

It is an amenable number.

1166893853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166893853 is an equidigital number, since it uses as much as digits as its factorization.

1166893853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 50.

The square root of 1166893853 is about 34159.8280587008. The cubic root of 1166893853 is about 1052.7949280590.

The spelling of 1166893853 in words is "one billion, one hundred sixty-six million, eight hundred ninety-three thousand, eight hundred fifty-three".