6560760021321 has 24 divisors (see below), whose sum is σ = 9758729304352. Its totient is φ = 3916871640000.

The previous prime is 6560760021317. The next prime is 6560760021359. The reversal of 6560760021321 is 1231200670656.

It is not a de Polignac number, because 6560760021321 - 2² = 6560760021317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6560760021321.

It is not an unprimeable number, because it can be changed into a prime (6560760028321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134854180 + ... + 134902821.

Almost surely, 2^{6560760021321} is an apocalyptic number.

It is an amenable number.

6560760021321 is a deficient number, since it is larger than the sum of its proper divisors (3197969283031).

6560760021321 is a wasteful number, since it uses less digits than its factorization.

6560760021321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269757093 (or 269757082 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

Adding to 6560760021321 its reverse (1231200670656), we get a palindrome (7791960691977).

The spelling of 6560760021321 in words is "six trillion, five hundred sixty billion, seven hundred sixty million, twenty-one thousand, three hundred twenty-one".