66208812248 has 16 divisors (see below), whose sum is σ = 124145442960. Its totient is φ = 33103360800.

The previous prime is 66208812233. The next prime is 66208812259. The reversal of 66208812248 is 84221880266.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 182738 + ... + 407198.

It is an arithmetic number, because the mean of its divisors is an integer number (7759090185).

Almost surely, 2^66208812248 is an apocalyptic number.

It is an amenable number.

66208812248 is a deficient number, since it is larger than the sum of its proper divisors (57936630712).

66208812248 is a wasteful number, since it uses less digits than its factorization.

66208812248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261338 (or 261334 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 47.

The spelling of 66208812248 in words is "sixty-six billion, two hundred eight million, eight hundred twelve thousand, two hundred forty-eight".