1366650160397 has 2 divisors, whose sum is σ = 1366650160398. Its totient is φ = 1366650160396.

The previous prime is 1366650160349. The next prime is 1366650160481. The reversal of 1366650160397 is 7930610566631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1335933742276 + 30716418121 = 1155826^2 + 175261^2 .

It is an emirp because it is prime and its reverse (7930610566631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1366650160397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1366650160307) 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, 683325080198 + 683325080199.

It is an arithmetic number, because the mean of its divisors is an integer number (683325080199).

Almost surely, 2^{1366650160397} is an apocalyptic number.

It is an amenable number.

1366650160397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366650160397 is an equidigital number, since it uses as much as digits as its factorization.

1366650160397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3674160, while the sum is 53.

The spelling of 1366650160397 in words is "one trillion, three hundred sixty-six billion, six hundred fifty million, one hundred sixty thousand, three hundred ninety-seven".