2666042664216 has 32 divisors (see below), whose sum is σ = 6694211943600. Its totient is φ = 884800183680.

The previous prime is 2666042664193. The next prime is 2666042664301. The reversal of 2666042664216 is 6124662406662.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 242538415 + ... + 242549406.

Almost surely, 2^{2666042664216} is an apocalyptic number.

It is an amenable number.

2666042664216 is an abundant number, since it is smaller than the sum of its proper divisors (4028169279384).

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

2666042664216 is a wasteful number, since it uses less digits than its factorization.

2666042664216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485088059 (or 485088055 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 51.

The spelling of 2666042664216 in words is "two trillion, six hundred sixty-six billion, forty-two million, six hundred sixty-four thousand, two hundred sixteen".