66636612333 has 16 divisors (see below), whose sum is σ = 99910319040. Its totient is φ = 43889172912.

The previous prime is 66636612271. The next prime is 66636612439. The reversal of 66636612333 is 33321663666.

It is not a de Polignac number, because 66636612333 - 2¹² = 66636608237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66636610333) 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 15 ways as a sum of consecutive naturals, for example, 14865366 + ... + 14869847.

It is an arithmetic number, because the mean of its divisors is an integer number (6244394940).

Almost surely, 2^66636612333 is an apocalyptic number.

It is an amenable number.

66636612333 is a deficient number, since it is larger than the sum of its proper divisors (33273706707).

66636612333 is a wasteful number, since it uses less digits than its factorization.

66636612333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29735305 (or 29735299 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 45.

The spelling of 66636612333 in words is "sixty-six billion, six hundred thirty-six million, six hundred twelve thousand, three hundred thirty-three".