3666132213123 has 4 divisors (see below), whose sum is σ = 4888176284168. Its totient is φ = 2444088142080.

The previous prime is 3666132213067. The next prime is 3666132213151. The reversal of 3666132213123 is 3213122316663.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3666132213123 - 2³⁶ = 3597412736387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3666132213193) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 611022035518 + ... + 611022035523.

It is an arithmetic number, because the mean of its divisors is an integer number (1222044071042).

Almost surely, 2^{3666132213123} is an apocalyptic number.

3666132213123 is a deficient number, since it is larger than the sum of its proper divisors (1222044071045).

3666132213123 is a wasteful number, since it uses less digits than its factorization.

3666132213123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222044071044.

The product of its digits is 139968, while the sum is 39.

Adding to 3666132213123 its reverse (3213122316663), we get a palindrome (6879254529786).

The spelling of 3666132213123 in words is "three trillion, six hundred sixty-six billion, one hundred thirty-two million, two hundred thirteen thousand, one hundred twenty-three".