2666668012459 has 16 divisors (see below), whose sum is σ = 3030483962880. Its totient is φ = 2324518884000.

The previous prime is 2666668012417. The next prime is 2666668012469. The reversal of 2666668012459 is 9542108666662.

It is a cyclic number.

It is not a de Polignac number, because 2666668012459 - 2⁷ = 2666668012331 is a prime.

It is a super-2 number, since 2×2666668012459² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2666668012397 and 2666668012406.

It is not an unprimeable number, because it can be changed into a prime (2666668012469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35835037 + ... + 35909374.

It is an arithmetic number, because the mean of its divisors is an integer number (189405247680).

Almost surely, 2^{2666668012459} is an apocalyptic number.

2666668012459 is a deficient number, since it is larger than the sum of its proper divisors (363815950421).

2666668012459 is a wasteful number, since it uses less digits than its factorization.

2666668012459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71744562.

The product of its (nonzero) digits is 44789760, while the sum is 61.

The spelling of 2666668012459 in words is "two trillion, six hundred sixty-six billion, six hundred sixty-eight million, twelve thousand, four hundred fifty-nine".