6656276655408 has 20 divisors (see below), whose sum is σ = 17195381359928. Its totient is φ = 2218758885120.

The previous prime is 6656276655359. The next prime is 6656276655433. The reversal of 6656276655408 is 8045566726566.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69336215113 + ... + 69336215208.

Almost surely, 2^{6656276655408} is an apocalyptic number.

It is an amenable number.

6656276655408 is an abundant number, since it is smaller than the sum of its proper divisors (10539104704520).

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

6656276655408 is a wasteful number, since it uses less digits than its factorization.

6656276655408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138672430332 (or 138672430326 counting only the distinct ones).

The product of its (nonzero) digits is 435456000, while the sum is 66.

The spelling of 6656276655408 in words is "six trillion, six hundred fifty-six billion, two hundred seventy-six million, six hundred fifty-five thousand, four hundred eight".