6677221328065 has 16 divisors (see below), whose sum is σ = 8184782972160. Its totient is φ = 5227077564160.

The previous prime is 6677221328053. The next prime is 6677221328087. The reversal of 6677221328065 is 5608231227766.

It is not a de Polignac number, because 6677221328065 - 2⁷ = 6677221327937 is a prime.

It is a super-2 number, since 2×6677221328065² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6677221327997 and 6677221328015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1659151 + ... + 4013380.

It is an arithmetic number, because the mean of its divisors is an integer number (511548935760).

Almost surely, 2^{6677221328065} is an apocalyptic number.

It is an amenable number.

6677221328065 is a deficient number, since it is larger than the sum of its proper divisors (1507561644095).

6677221328065 is a wasteful number, since it uses less digits than its factorization.

6677221328065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5677592.

The product of its (nonzero) digits is 10160640, while the sum is 55.

The spelling of 6677221328065 in words is "six trillion, six hundred seventy-seven billion, two hundred twenty-one million, three hundred twenty-eight thousand, sixty-five".