1166790377 has 2 divisors, whose sum is σ = 1166790378. Its totient is φ = 1166790376.

The previous prime is 1166790353. The next prime is 1166790403. The reversal of 1166790377 is 7730976611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 708145321 + 458645056 = 26611^2 + 21416^2 .

It is an emirp because it is prime and its reverse (7730976611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166790377 is a prime.

It is a super-2 number, since 2×1166790377² = 2722799567719604258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1166790347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583395188 + 583395189.

It is an arithmetic number, because the mean of its divisors is an integer number (583395189).

Almost surely, 2^1166790377 is an apocalyptic number.

It is an amenable number.

1166790377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166790377 is an equidigital number, since it uses as much as digits as its factorization.

1166790377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 333396, while the sum is 47.

The square root of 1166790377 is about 34158.3134390444. The cubic root of 1166790377 is about 1052.7638077681.

The spelling of 1166790377 in words is "one billion, one hundred sixty-six million, seven hundred ninety thousand, three hundred seventy-seven".