6662260622666 has 48 divisors (see below), whose sum is σ = 11052843326280. Its totient is φ = 3009507072000.

The previous prime is 6662260622657. The next prime is 6662260622687.

6662260622666 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 5566669265641 + 1095591357025 = 2359379^2 + 1046705^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25976690 + ... + 26231906.

Almost surely, 2^{6662260622666} is an apocalyptic number.

6662260622666 is a deficient number, since it is larger than the sum of its proper divisors (4390582703614).

6662260622666 is a wasteful number, since it uses less digits than its factorization.

6662260622666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255911 (or 255900 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 56.

The spelling of 6662260622666 in words is "six trillion, six hundred sixty-two billion, two hundred sixty million, six hundred twenty-two thousand, six hundred sixty-six".