66163636166 has 8 divisors (see below), whose sum is σ = 105083422200. Its totient is φ = 31135828768.

The previous prime is 66163636163. The next prime is 66163636177.

66163636166 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66163636163) 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 3 ways as a sum of consecutive naturals, for example, 972994616 + ... + 972994683.

It is an arithmetic number, because the mean of its divisors is an integer number (13135427775).

Almost surely, 2^66163636166 is an apocalyptic number.

66163636166 is a deficient number, since it is larger than the sum of its proper divisors (38919786034).

66163636166 is a wasteful number, since it uses less digits than its factorization.

66163636166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945989318.

The product of its digits is 2519424, while the sum is 50.

The spelling of 66163636166 in words is "sixty-six billion, one hundred sixty-three million, six hundred thirty-six thousand, one hundred sixty-six".