6606556603564 has 48 divisors (see below), whose sum is σ = 11795725025280. Its totient is φ = 3236522477760.

The previous prime is 6606556603489. The next prime is 6606556603567. The reversal of 6606556603564 is 4653066556066.

It is a junction number, because it is equal to n+sod(n) for n = 6606556603499 and 6606556603508.

It is not an unprimeable number, because it can be changed into a prime (6606556603567) by changing a digit.

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, 1075457877 + ... + 1075464019.

It is an arithmetic number, because the mean of its divisors is an integer number (245744271360).

Almost surely, 2^{6606556603564} is an apocalyptic number.

It is an amenable number.

6606556603564 is a deficient number, since it is larger than the sum of its proper divisors (5189168421716).

6606556603564 is a wasteful number, since it uses less digits than its factorization.

6606556603564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12310 (or 12308 counting only the distinct ones).

The product of its (nonzero) digits is 69984000, while the sum is 58.

The spelling of 6606556603564 in words is "six trillion, six hundred six billion, five hundred fifty-six million, six hundred three thousand, five hundred sixty-four".