66166102211 has 12 divisors (see below), whose sum is σ = 74501889672. Its totient is φ = 58683900000.

The previous prime is 66166102187. The next prime is 66166102213. The reversal of 66166102211 is 11220166166.

It is not a de Polignac number, because 66166102211 - 2¹⁸ = 66165840067 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66166102213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6663665 + ... + 6673586.

It is an arithmetic number, because the mean of its divisors is an integer number (6208490806).

Almost surely, 2^66166102211 is an apocalyptic number.

66166102211 is a deficient number, since it is larger than the sum of its proper divisors (8335787461).

66166102211 is a wasteful number, since it uses less digits than its factorization.

66166102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13337314 (or 13337303 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

Adding to 66166102211 its reverse (11220166166), we get a palindrome (77386268377).

The spelling of 66166102211 in words is "sixty-six billion, one hundred sixty-six million, one hundred two thousand, two hundred eleven".