1320097784664 has 128 divisors (see below), whose sum is σ = 3347095449600. Its totient is φ = 433824768000.

The previous prime is 1320097784653. The next prime is 1320097784701. The reversal of 1320097784664 is 4664877900231.

It is a super-2 number, since 2×1320097784664² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 994797969 + ... + 994799295.

It is an arithmetic number, because the mean of its divisors is an integer number (26149183200).

Almost surely, 2^{1320097784664} is an apocalyptic number.

It is an amenable number.

1320097784664 is an abundant number, since it is smaller than the sum of its proper divisors (2026997664936).

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

1320097784664 is a wasteful number, since it uses less digits than its factorization.

1320097784664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753 (or 2749 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 57.

The spelling of 1320097784664 in words is "one trillion, three hundred twenty billion, ninety-seven million, seven hundred eighty-four thousand, six hundred sixty-four".