1366376825856 has 528 divisors, whose sum is σ = 4372173085632. Its totient is φ = 378091929600.

The previous prime is 1366376825833. The next prime is 1366376825867. The reversal of 1366376825856 is 6585286736631.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 615206826 + ... + 615209046.

It is an arithmetic number, because the mean of its divisors is an integer number (8280630844).

Almost surely, 2^{1366376825856} is an apocalyptic number.

1366376825856 is a gapful number since it is divisible by the number (16) 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 1366376825856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2186086542816).

1366376825856 is an abundant number, since it is smaller than the sum of its proper divisors (3005796259776).

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

1366376825856 is a wasteful number, since it uses less digits than its factorization.

1366376825856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386 (or 2361 counting only the distinct ones).

The product of its digits is 261273600, while the sum is 66.

The spelling of 1366376825856 in words is "one trillion, three hundred sixty-six billion, three hundred seventy-six million, eight hundred twenty-five thousand, eight hundred fifty-six".