1366899828912 has 120 divisors (see below), whose sum is σ = 3992349160800. Its totient is φ = 435757031424.

The previous prime is 1366899828881. The next prime is 1366899829019. The reversal of 1366899828912 is 2198289986631.

It is a super-2 number, since 2×1366899828912² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24776014 + ... + 24831122.

It is an arithmetic number, because the mean of its divisors is an integer number (33269576340).

Almost surely, 2^{1366899828912} is an apocalyptic number.

1366899828912 is a gapful number since it is divisible by the number (12) 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 1366899828912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1996174580400).

1366899828912 is an abundant number, since it is smaller than the sum of its proper divisors (2625449331888).

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

1366899828912 is a wasteful number, since it uses less digits than its factorization.

1366899828912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62635 (or 62626 counting only the distinct ones).

The product of its digits is 161243136, while the sum is 72.

The spelling of 1366899828912 in words is "one trillion, three hundred sixty-six billion, eight hundred ninety-nine million, eight hundred twenty-eight thousand, nine hundred twelve".