1366891397188 has 12 divisors (see below), whose sum is σ = 2392286561280. Its totient is φ = 683380951112.

The previous prime is 1366891397087. The next prime is 1366891397197. The reversal of 1366891397188 is 8817931986631.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16139356 + ... + 16223827.

It is an arithmetic number, because the mean of its divisors is an integer number (199357213440).

Almost surely, 2^{1366891397188} is an apocalyptic number.

It is an amenable number.

1366891397188 is a deficient number, since it is larger than the sum of its proper divisors (1025395164092).

1366891397188 is a wasteful number, since it uses less digits than its factorization.

1366891397188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32373746 (or 32373744 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 70.

The spelling of 1366891397188 in words is "one trillion, three hundred sixty-six billion, eight hundred ninety-one million, three hundred ninety-seven thousand, one hundred eighty-eight".