1166427719 has 2 divisors, whose sum is σ = 1166427720. Its totient is φ = 1166427718.

The previous prime is 1166427707. The next prime is 1166427739. The reversal of 1166427719 is 9177246611.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166427719 is a prime.

It is a super-2 number, since 2×1166427719² = 2721107247303085922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1166427719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1166427739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583213859 + 583213860.

It is an arithmetic number, because the mean of its divisors is an integer number (583213860).

Almost surely, 2^1166427719 is an apocalyptic number.

1166427719 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166427719 is an equidigital number, since it uses as much as digits as its factorization.

1166427719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 44.

The square root of 1166427719 is about 34153.0045384004. The cubic root of 1166427719 is about 1052.6547242552.

The spelling of 1166427719 in words is "one billion, one hundred sixty-six million, four hundred twenty-seven thousand, seven hundred nineteen".