1340747400660 has 24 divisors (see below), whose sum is σ = 3754092722016. Its totient is φ = 357532640160.

The previous prime is 1340747400613. The next prime is 1340747400691. The reversal of 1340747400660 is 660047470431.

It is a congruent number.

It is an unprimeable number.

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, 11172894946 + ... + 11172895065.

It is an arithmetic number, because the mean of its divisors is an integer number (156420530084).

Almost surely, 2^{1340747400660} is an apocalyptic number.

1340747400660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340747400660 is an abundant number, since it is smaller than the sum of its proper divisors (2413345321356).

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

1340747400660 is a wasteful number, since it uses less digits than its factorization.

1340747400660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22345790023 (or 22345790021 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 42.

The spelling of 1340747400660 in words is "one trillion, three hundred forty billion, seven hundred forty-seven million, four hundred thousand, six hundred sixty".