66246885224 has 16 divisors (see below), whose sum is σ = 133767749220. Its totient is φ = 30575485440.

The previous prime is 66246885223. The next prime is 66246885233. The reversal of 66246885224 is 42258864266.

It can be written as a sum of positive squares in 2 ways, for example, as 65971922500 + 274962724 = 256850^2 + 16582^2 .

It is not an unprimeable number, because it can be changed into a prime (66246885223) 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, 318494537 + ... + 318494744.

Almost surely, 2^66246885224 is an apocalyptic number.

It is an amenable number.

66246885224 is an abundant number, since it is smaller than the sum of its proper divisors (67520863996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66246885224 is a wasteful number, since it uses less digits than its factorization.

66246885224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636989300 (or 636989296 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 53.

The spelling of 66246885224 in words is "sixty-six billion, two hundred forty-six million, eight hundred eighty-five thousand, two hundred twenty-four".