6616562656166 has 16 divisors (see below), whose sum is σ = 9949105895040. Its totient is φ = 3300195111360.

The previous prime is 6616562656163. The next prime is 6616562656169.

6616562656166 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (6616562656163) and next prime (6616562656169).

It is a junction number, because it is equal to n+sod(n) for n = 6616562656099 and 6616562656108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6616562656163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12264050 + ... + 12792186.

It is an arithmetic number, because the mean of its divisors is an integer number (621819118440).

Almost surely, 2^{6616562656166} is an apocalyptic number.

6616562656166 is a deficient number, since it is larger than the sum of its proper divisors (3332543238874).

6616562656166 is a wasteful number, since it uses less digits than its factorization.

6616562656166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543439.

The product of its digits is 83980800, while the sum is 62.

The spelling of 6616562656166 in words is "six trillion, six hundred sixteen billion, five hundred sixty-two million, six hundred fifty-six thousand, one hundred sixty-six".