1366743680039 has 4 divisors (see below), whose sum is σ = 1389149314200. Its totient is φ = 1344338045880.

The previous prime is 1366743680009. The next prime is 1366743680041. The reversal of 1366743680039 is 9300863476631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1366743680039 - 2²⁴ = 1366726902823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366743680009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11202816989 + ... + 11202817110.

It is an arithmetic number, because the mean of its divisors is an integer number (347287328550).

Almost surely, 2^{1366743680039} is an apocalyptic number.

1366743680039 is a deficient number, since it is larger than the sum of its proper divisors (22405634161).

1366743680039 is an equidigital number, since it uses as much as digits as its factorization.

1366743680039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22405634160.

The product of its (nonzero) digits is 11757312, while the sum is 56.

The spelling of 1366743680039 in words is "one trillion, three hundred sixty-six billion, seven hundred forty-three million, six hundred eighty thousand, thirty-nine".