2606006668 has 6 divisors (see below), whose sum is σ = 4560511676. Its totient is φ = 1303003332.

The previous prime is 2606006659. The next prime is 2606006717. The reversal of 2606006668 is 8666006062.

It is a self number, because there is not a number n which added to its sum of digits gives 2606006668.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325750830 + ... + 325750837.

Almost surely, 2^2606006668 is an apocalyptic number.

It is an amenable number.

2606006668 is a deficient number, since it is larger than the sum of its proper divisors (1954505008).

2606006668 is a wasteful number, since it uses less digits than its factorization.

2606006668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651501671 (or 651501669 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 2606006668 is about 51049.0613821645. The cubic root of 2606006668 is about 1376.1269734494.

The spelling of 2606006668 in words is "two billion, six hundred six million, six thousand, six hundred sixty-eight".