6660568650628 has 12 divisors (see below), whose sum is σ = 11656018590160. Its totient is φ = 3330277624872.

The previous prime is 6660568650587. The next prime is 6660568650629. The reversal of 6660568650628 is 8260568650666.

It is a self number, because there is not a number n which added to its sum of digits gives 6660568650628.

It is not an unprimeable number, because it can be changed into a prime (6660568650629) by changing a digit.

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, 1056403 + ... + 3799621.

Almost surely, 2^{6660568650628} is an apocalyptic number.

It is an amenable number.

6660568650628 is a deficient number, since it is larger than the sum of its proper divisors (4995449939532).

6660568650628 is a wasteful number, since it uses less digits than its factorization.

6660568650628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350226 (or 3350224 counting only the distinct ones).

The product of its (nonzero) digits is 149299200, while the sum is 64.

The spelling of 6660568650628 in words is "six trillion, six hundred sixty billion, five hundred sixty-eight million, six hundred fifty thousand, six hundred twenty-eight".