1366216616112 has 40 divisors (see below), whose sum is σ = 3529507690800. Its totient is φ = 455390730240.

The previous prime is 1366216616111. The next prime is 1366216616123. The reversal of 1366216616112 is 2116166126631.

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

It is not an unprimeable number, because it can be changed into a prime (1366216616111) 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 7 ways as a sum of consecutive naturals, for example, 1081912 + ... + 1975592.

It is an arithmetic number, because the mean of its divisors is an integer number (88237692270).

Almost surely, 2^{1366216616112} is an apocalyptic number.

1366216616112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1366216616112 is an abundant number, since it is smaller than the sum of its proper divisors (2163291074688).

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

1366216616112 is a wasteful number, since it uses less digits than its factorization.

1366216616112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925541 (or 925535 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The spelling of 1366216616112 in words is "one trillion, three hundred sixty-six billion, two hundred sixteen million, six hundred sixteen thousand, one hundred twelve".