1166433761 has 2 divisors, whose sum is σ = 1166433762. Its totient is φ = 1166433760.

The previous prime is 1166433703. The next prime is 1166433787. The reversal of 1166433761 is 1673346611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1146228736 + 20205025 = 33856^2 + 4495^2 .

It is an emirp because it is prime and its reverse (1673346611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166433761 is a prime.

It is not a weakly prime, because it can be changed into another prime (1166433701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583216880 + 583216881.

It is an arithmetic number, because the mean of its divisors is an integer number (583216881).

Almost surely, 2^1166433761 is an apocalyptic number.

It is an amenable number.

1166433761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166433761 is an equidigital number, since it uses as much as digits as its factorization.

1166433761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 38.

The square root of 1166433761 is about 34153.0929931683. The cubic root of 1166433761 is about 1052.6565418071.

The spelling of 1166433761 in words is "one billion, one hundred sixty-six million, four hundred thirty-three thousand, seven hundred sixty-one".