1166516233 has 2 divisors, whose sum is σ = 1166516234. Its totient is φ = 1166516232.

The previous prime is 1166516207. The next prime is 1166516261. The reversal of 1166516233 is 3326156611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 647040969 + 519475264 = 25437^2 + 22792^2 .

It is a cyclic number.

It is not a de Polignac number, because 1166516233 - 2¹³ = 1166508041 is a prime.

It is not a weakly prime, because it can be changed into another prime (1166516633) 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, 583258116 + 583258117.

It is an arithmetic number, because the mean of its divisors is an integer number (583258117).

Almost surely, 2^1166516233 is an apocalyptic number.

It is an amenable number.

1166516233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166516233 is an equidigital number, since it uses as much as digits as its factorization.

1166516233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 34.

The square root of 1166516233 is about 34154.3003588128. The cubic root of 1166516233 is about 1052.6813503724.

The spelling of 1166516233 in words is "one billion, one hundred sixty-six million, five hundred sixteen thousand, two hundred thirty-three".