66011888306 has 24 divisors (see below), whose sum is σ = 124044319980. Its totient is φ = 26114592672.

The previous prime is 66011888303. The next prime is 66011888329. The reversal of 66011888306 is 60388811066.

It can be written as a sum of positive squares in 2 ways, for example, as 65233757281 + 778131025 = 255409^2 + 27895^2 .

It is not an unprimeable number, because it can be changed into a prime (66011888303) 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 11 ways as a sum of consecutive naturals, for example, 25906061 + ... + 25908608.

Almost surely, 2^66011888306 is an apocalyptic number.

66011888306 is a deficient number, since it is larger than the sum of its proper divisors (58032431674).

66011888306 is a wasteful number, since it uses less digits than its factorization.

66011888306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51814698 (or 51814691 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 66011888306 in words is "sixty-six billion, eleven million, eight hundred eighty-eight thousand, three hundred six".