1366265443423 has 2 divisors, whose sum is σ = 1366265443424. Its totient is φ = 1366265443422.

The previous prime is 1366265443399. The next prime is 1366265443453. The reversal of 1366265443423 is 3243445626631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1366265443423 - 2⁵ = 1366265443391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1366265443453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683132721711 + 683132721712.

It is an arithmetic number, because the mean of its divisors is an integer number (683132721712).

Almost surely, 2^{1366265443423} is an apocalyptic number.

1366265443423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366265443423 is an equidigital number, since it uses as much as digits as its factorization.

1366265443423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7464960, while the sum is 49.

The spelling of 1366265443423 in words is "one trillion, three hundred sixty-six billion, two hundred sixty-five million, four hundred forty-three thousand, four hundred twenty-three".