1340666666800 has 60 divisors (see below), whose sum is σ = 3231443662216. Its totient is φ = 534519820800.

The previous prime is 1340666666741. The next prime is 1340666666821. The reversal of 1340666666800 is 86666660431.

It is a super-2 number, since 2×1340666666800² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5335941 + ... + 5581540.

Almost surely, 2^{1340666666800} is an apocalyptic number.

1340666666800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340666666800 is an abundant number, since it is smaller than the sum of its proper divisors (1890776995416).

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

1340666666800 is a wasteful number, since it uses less digits than its factorization.

1340666666800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10917806 (or 10917795 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 52.

The spelling of 1340666666800 in words is "one trillion, three hundred forty billion, six hundred sixty-six million, six hundred sixty-six thousand, eight hundred".