1366457545441 has 4 divisors (see below), whose sum is σ = 1366459883712. Its totient is φ = 1366455207172.

The previous prime is 1366457545423. The next prime is 1366457545457. The reversal of 1366457545441 is 1445457546631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1366457545441 - 2¹⁷ = 1366457414369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1366457545471) 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 in 3 ways as a sum of consecutive naturals, for example, 553860 + ... + 1743466.

It is an arithmetic number, because the mean of its divisors is an integer number (341614970928).

Almost surely, 2^{1366457545441} is an apocalyptic number.

It is an amenable number.

1366457545441 is a deficient number, since it is larger than the sum of its proper divisors (2338271).

1366457545441 is a wasteful number, since it uses less digits than its factorization.

1366457545441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338270.

The product of its digits is 24192000, while the sum is 55.

The spelling of 1366457545441 in words is "one trillion, three hundred sixty-six billion, four hundred fifty-seven million, five hundred forty-five thousand, four hundred forty-one".