2666443661433 has 24 divisors (see below), whose sum is σ = 3892702859136. Its totient is φ = 1758670380000.

The previous prime is 2666443661377. The next prime is 2666443661447. The reversal of 2666443661433 is 3341663446662.

2666443661433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2666443661433 - 2⁸ = 2666443661177 is a prime.

It is a super-2 number, since 2×2666443661433² (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 2666443661433.

It is not an unprimeable number, because it can be changed into a prime (2666443665433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1120258 + ... + 2566683.

It is an arithmetic number, because the mean of its divisors is an integer number (162195952464).

Almost surely, 2^{2666443661433} is an apocalyptic number.

It is an amenable number.

2666443661433 is a deficient number, since it is larger than the sum of its proper divisors (1226259197703).

2666443661433 is a wasteful number, since it uses less digits than its factorization.

2666443661433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3687805 (or 3687802 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 54.

The spelling of 2666443661433 in words is "two trillion, six hundred sixty-six billion, four hundred forty-three million, six hundred sixty-one thousand, four hundred thirty-three".