1320688884040 has 64 divisors (see below), whose sum is σ = 3003918422400. Its totient is φ = 522527459328.

The previous prime is 1320688884013. The next prime is 1320688884049. The reversal of 1320688884040 is 404888860231.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1320688884049) 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, 6680941 + ... + 6875779.

It is an arithmetic number, because the mean of its divisors is an integer number (46936225350).

Almost surely, 2^{1320688884040} is an apocalyptic number.

1320688884040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320688884040 is an abundant number, since it is smaller than the sum of its proper divisors (1683229538360).

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

1320688884040 is a wasteful number, since it uses less digits than its factorization.

1320688884040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196694 (or 196690 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 52.

The spelling of 1320688884040 in words is "one trillion, three hundred twenty billion, six hundred eighty-eight million, eight hundred eighty-four thousand, forty".