2666668160028 has 12 divisors (see below), whose sum is σ = 6222225706760. Its totient is φ = 888889386672.

The previous prime is 2666668159979. The next prime is 2666668160053. The reversal of 2666668160028 is 8200618666662.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2666668160028² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2666668160028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111111173323 + ... + 111111173346.

Almost surely, 2^{2666668160028} is an apocalyptic number.

It is an amenable number.

2666668160028 is an abundant number, since it is smaller than the sum of its proper divisors (3555557546732).

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

2666668160028 is a wasteful number, since it uses less digits than its factorization.

2666668160028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222222346676 (or 222222346674 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 57.

The spelling of 2666668160028 in words is "two trillion, six hundred sixty-six billion, six hundred sixty-eight million, one hundred sixty thousand, twenty-eight".