1166147282647 has 2 divisors, whose sum is σ = 1166147282648. Its totient is φ = 1166147282646.

The previous prime is 1166147282603. The next prime is 1166147282683. The reversal of 1166147282647 is 7462827416611.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1166147282647 - 2⁷ = 1166147282519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1166147282747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583073641323 + 583073641324.

It is an arithmetic number, because the mean of its divisors is an integer number (583073641324).

Almost surely, 2^{1166147282647} is an apocalyptic number.

1166147282647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166147282647 is an equidigital number, since it uses as much as digits as its factorization.

1166147282647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5419008, while the sum is 55.

The spelling of 1166147282647 in words is "one trillion, one hundred sixty-six billion, one hundred forty-seven million, two hundred eighty-two thousand, six hundred forty-seven".