66240500244 has 24 divisors (see below), whose sum is σ = 154571071200. Its totient is φ = 22078751904.

The previous prime is 66240500219. The next prime is 66240500257. The reversal of 66240500244 is 44200504266.

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 7 ways as a sum of consecutive naturals, for example, 27682 + ... + 365030.

It is an arithmetic number, because the mean of its divisors is an integer number (6440461300).

Almost surely, 2^66240500244 is an apocalyptic number.

It is an amenable number.

66240500244 is an abundant number, since it is smaller than the sum of its proper divisors (88330570956).

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

66240500244 is a wasteful number, since it uses less digits than its factorization.

66240500244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353719 (or 353717 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The spelling of 66240500244 in words is "sixty-six billion, two hundred forty million, five hundred thousand, two hundred forty-four".