1346791345680 has 80 divisors (see below), whose sum is σ = 4554603468864. Its totient is φ = 326494871040.

The previous prime is 1346791345657. The next prime is 1346791345681. The reversal of 1346791345680 is 865431976431.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1346791345680.

It is not an unprimeable number, because it can be changed into a prime (1346791345681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255071479 + ... + 255076758.

Almost surely, 2^{1346791345680} is an apocalyptic number.

1346791345680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1346791345680 is an abundant number, since it is smaller than the sum of its proper divisors (3207812123184).

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

1346791345680 is a wasteful number, since it uses less digits than its factorization.

1346791345680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510148264 (or 510148258 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 1346791345680 in words is "one trillion, three hundred forty-six billion, seven hundred ninety-one million, three hundred forty-five thousand, six hundred eighty".