1366890943936 has 112 divisors (see below), whose sum is σ = 3201164032000. Its totient is φ = 566691240960.

The previous prime is 1366890943907. The next prime is 1366890943939. The reversal of 1366890943936 is 6393490986631.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×1366890943936² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366890943939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38160211 + ... + 38196013.

Almost surely, 2^{1366890943936} is an apocalyptic number.

1366890943936 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 1366890943936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1600582016000).

1366890943936 is an abundant number, since it is smaller than the sum of its proper divisors (1834273088064).

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

1366890943936 is a wasteful number, since it uses less digits than its factorization.

1366890943936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38602 (or 38592 counting only the distinct ones).

The product of its (nonzero) digits is 136048896, while the sum is 67.

The spelling of 1366890943936 in words is "one trillion, three hundred sixty-six billion, eight hundred ninety million, nine hundred forty-three thousand, nine hundred thirty-six".