1366671154040 has 16 divisors (see below), whose sum is σ = 3075010096680. Its totient is φ = 546668461600.

The previous prime is 1366671154039. The next prime is 1366671154061. The reversal of 1366671154040 is 404511766631.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1366671153982 and 1366671154000.

It is a congruent 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, 17083389386 + ... + 17083389465.

Almost surely, 2^{1366671154040} is an apocalyptic number.

1366671154040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1366671154040 is an abundant number, since it is smaller than the sum of its proper divisors (1708338942640).

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

1366671154040 is a wasteful number, since it uses less digits than its factorization.

1366671154040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34166778862 (or 34166778858 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 1366671154040 in words is "one trillion, three hundred sixty-six billion, six hundred seventy-one million, one hundred fifty-four thousand, forty".