1164123782177 has 2 divisors, whose sum is σ = 1164123782178. Its totient is φ = 1164123782176.

The previous prime is 1164123782161. The next prime is 1164123782183. The reversal of 1164123782177 is 7712873214611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1151069348641 + 13054433536 = 1072879^2 + 114256^2 .

It is a cyclic number.

It is not a de Polignac number, because 1164123782177 - 2⁴ = 1164123782161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1164123782377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582061891088 + 582061891089.

It is an arithmetic number, because the mean of its divisors is an integer number (582061891089).

Almost surely, 2^{1164123782177} is an apocalyptic number.

It is an amenable number.

1164123782177 is a deficient number, since it is larger than the sum of its proper divisors (1).

1164123782177 is an equidigital number, since it uses as much as digits as its factorization.

1164123782177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 790272, while the sum is 50.

Adding to 1164123782177 its reverse (7712873214611), we get a palindrome (8876996996788).

The spelling of 1164123782177 in words is "one trillion, one hundred sixty-four billion, one hundred twenty-three million, seven hundred eighty-two thousand, one hundred seventy-seven".