1166495663 has 2 divisors, whose sum is σ = 1166495664. Its totient is φ = 1166495662.

The previous prime is 1166495653. The next prime is 1166495711. The reversal of 1166495663 is 3665946611.

It is a weak prime.

It is an emirp because it is prime and its reverse (3665946611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1166495663 - 2¹⁶ = 1166430127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1166495653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583247831 + 583247832.

It is an arithmetic number, because the mean of its divisors is an integer number (583247832).

Almost surely, 2^1166495663 is an apocalyptic number.

1166495663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166495663 is an equidigital number, since it uses as much as digits as its factorization.

1166495663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 47.

The square root of 1166495663 is about 34153.9992241026. Note that the first 3 decimals coincide. The cubic root of 1166495663 is about 1052.6751627795.

The spelling of 1166495663 in words is "one billion, one hundred sixty-six million, four hundred ninety-five thousand, six hundred sixty-three".