2666758426111 has 8 divisors (see below), whose sum is σ = 2872545122160. Its totient is φ = 2461064791872.

The previous prime is 2666758426097. The next prime is 2666758426117. The reversal of 2666758426111 is 1116248576662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2666758426111 - 2¹¹ = 2666758424063 is a prime.

It is a super-2 number, since 2×2666758426111² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666758426117) 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, 23205925 + ... + 23320558.

It is an arithmetic number, because the mean of its divisors is an integer number (359068140270).

Almost surely, 2^{2666758426111} is an apocalyptic number.

2666758426111 is a deficient number, since it is larger than the sum of its proper divisors (205786696049).

2666758426111 is a wasteful number, since it uses less digits than its factorization.

2666758426111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46530905.

The product of its digits is 5806080, while the sum is 55.

The spelling of 2666758426111 in words is "two trillion, six hundred sixty-six billion, seven hundred fifty-eight million, four hundred twenty-six thousand, one hundred eleven".