1320373440684 has 144 divisors (see below), whose sum is σ = 3427544484000. Its totient is φ = 428403935232.

The previous prime is 1320373440667. The next prime is 1320373440707. The reversal of 1320373440684 is 4860443730231.

1320373440684 is a `hidden beast` number, since 1 + 3 + 203 + 7 + 34 + 406 + 8 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 286848327 + ... + 286852929.

It is an arithmetic number, because the mean of its divisors is an integer number (23802392250).

Almost surely, 2^{1320373440684} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320373440684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1713772242000).

1320373440684 is an abundant number, since it is smaller than the sum of its proper divisors (2107171043316).

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

1320373440684 is a wasteful number, since it uses less digits than its factorization.

1320373440684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5824 (or 5819 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 45.

The spelling of 1320373440684 in words is "one trillion, three hundred twenty billion, three hundred seventy-three million, four hundred forty thousand, six hundred eighty-four".