2606664664068 has 48 divisors (see below), whose sum is σ = 6152505912000. Its totient is φ = 858853214208.

The previous prime is 2606664664067. The next prime is 2606664664073. The reversal of 2606664664068 is 8604664666062.

It is not an unprimeable number, because it can be changed into a prime (2606664664067) 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 15 ways as a sum of consecutive naturals, for example, 2999403 + ... + 3769581.

It is an arithmetic number, because the mean of its divisors is an integer number (128177206500).

Almost surely, 2^{2606664664068} is an apocalyptic number.

It is an amenable number.

2606664664068 is an abundant number, since it is smaller than the sum of its proper divisors (3545841247932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2606664664068 is a wasteful number, since it uses less digits than its factorization.

2606664664068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773444 (or 773442 counting only the distinct ones).

The product of its (nonzero) digits is 71663616, while the sum is 60.

The spelling of 2606664664068 in words is "two trillion, six hundred six billion, six hundred sixty-four million, six hundred sixty-four thousand, sixty-eight".