66661325224304 has 20 divisors (see below), whose sum is σ = 129156497547360. Its totient is φ = 33330616179840.

The previous prime is 66661325224237. The next prime is 66661325224313. The reversal of 66661325224304 is 40342252316666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10944137 + ... + 15909015.

It is an arithmetic number, because the mean of its divisors is an integer number (6457824877368).

Almost surely, 2^{66661325224304} is an apocalyptic number.

It is an amenable number.

66661325224304 is a deficient number, since it is larger than the sum of its proper divisors (62495172323056).

66661325224304 is a wasteful number, since it uses less digits than its factorization.

66661325224304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5804048 (or 5804042 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 50.

The spelling of 66661325224304 in words is "sixty-six trillion, six hundred sixty-one billion, three hundred twenty-five million, two hundred twenty-four thousand, three hundred four".