1366766041 has 2 divisors, whose sum is σ = 1366766042. Its totient is φ = 1366766040.

The previous prime is 1366766039. The next prime is 1366766059. The reversal of 1366766041 is 1406676631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 712890000 + 653876041 = 26700^2 + 25571^2 .

It is a cyclic number.

It is not a de Polignac number, because 1366766041 - 2¹ = 1366766039 is a prime.

Together with 1366766039, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1366765985 and 1366766003.

It is not a weakly prime, because it can be changed into another prime (1366766021) 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, 683383020 + 683383021.

It is an arithmetic number, because the mean of its divisors is an integer number (683383021).

Almost surely, 2^1366766041 is an apocalyptic number.

It is an amenable number.

1366766041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366766041 is an equidigital number, since it uses as much as digits as its factorization.

1366766041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 1366766041 is about 36969.7990392158. The cubic root of 1366766041 is about 1109.7659439407.

The spelling of 1366766041 in words is "one billion, three hundred sixty-six million, seven hundred sixty-six thousand, forty-one".