6656683365 has 12 divisors (see below), whose sum is σ = 11538251244. Its totient is φ = 3550231104.

The previous prime is 6656683331. The next prime is 6656683373. The reversal of 6656683365 is 5633866566.

It can be written as a sum of positive squares in 2 ways, for example, as 1310295204 + 5346388161 = 36198^2 + 73119^2 .

It is not a de Polignac number, because 6656683365 - 2⁷ = 6656683237 is a prime.

It is a super-2 number, since 2×6656683365² = 88622866843735446450, which 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 (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73963104 + ... + 73963193.

It is an arithmetic number, because the mean of its divisors is an integer number (961520937).

Almost surely, 2^6656683365 is an apocalyptic number.

It is an amenable number.

6656683365 is a deficient number, since it is larger than the sum of its proper divisors (4881567879).

6656683365 is a wasteful number, since it uses less digits than its factorization.

6656683365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147926308 (or 147926305 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 54.

The square root of 6656683365 is about 81588.5002007023. The cubic root of 6656683365 is about 1881.1321237680.

The spelling of 6656683365 in words is "six billion, six hundred fifty-six million, six hundred eighty-three thousand, three hundred sixty-five".