1166465966447 has 2 divisors, whose sum is σ = 1166465966448. Its totient is φ = 1166465966446.

The previous prime is 1166465966443. The next prime is 1166465966461. The reversal of 1166465966447 is 7446695646611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1166465966447 - 2² = 1166465966443 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1166465966443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583232983223 + 583232983224.

It is an arithmetic number, because the mean of its divisors is an integer number (583232983224).

Almost surely, 2^{1166465966447} is an apocalyptic number.

1166465966447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166465966447 is an equidigital number, since it uses as much as digits as its factorization.

1166465966447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 156764160, while the sum is 65.

The spelling of 1166465966447 in words is "one trillion, one hundred sixty-six billion, four hundred sixty-five million, nine hundred sixty-six thousand, four hundred forty-seven".