1366723504420 has 96 divisors (see below), whose sum is σ = 3114078670080. Its totient is φ = 501819125760.

The previous prime is 1366723504417. The next prime is 1366723504427. The reversal of 1366723504420 is 244053276631.

It is not an unprimeable number, because it can be changed into a prime (1366723504427) 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 in 31 ways as a sum of consecutive naturals, for example, 48315841 + ... + 48344119.

It is an arithmetic number, because the mean of its divisors is an integer number (32438319480).

Almost surely, 2^{1366723504420} is an apocalyptic number.

1366723504420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1366723504420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1557039335040).

1366723504420 is an abundant number, since it is smaller than the sum of its proper divisors (1747355165660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1366723504420 is a wasteful number, since it uses less digits than its factorization.

1366723504420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31813 (or 31811 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 1366723504420 in words is "one trillion, three hundred sixty-six billion, seven hundred twenty-three million, five hundred four thousand, four hundred twenty".