1366774444403 has 2 divisors, whose sum is σ = 1366774444404. Its totient is φ = 1366774444402.

The previous prime is 1366774444331. The next prime is 1366774444429. The reversal of 1366774444403 is 3044444776631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1366774444403 is a prime.

It is not a weakly prime, because it can be changed into another prime (1366774444493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683387222201 + 683387222202.

It is an arithmetic number, because the mean of its divisors is an integer number (683387222202).

Almost surely, 2^{1366774444403} is an apocalyptic number.

1366774444403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366774444403 is an equidigital number, since it uses as much as digits as its factorization.

1366774444403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16257024, while the sum is 53.

The spelling of 1366774444403 in words is "one trillion, three hundred sixty-six billion, seven hundred seventy-four million, four hundred forty-four thousand, four hundred three".