66662202664 has 16 divisors (see below), whose sum is σ = 124995276000. Its totient is φ = 33330129072.

The previous prime is 66662202643. The next prime is 66662202671. The reversal of 66662202664 is 46620226666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229509 + ... + 431275.

It is an arithmetic number, because the mean of its divisors is an integer number (7812204750).

Almost surely, 2^66662202664 is an apocalyptic number.

It is an amenable number.

66662202664 is a deficient number, since it is larger than the sum of its proper divisors (58333073336).

66662202664 is a wasteful number, since it uses less digits than its factorization.

66662202664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243072 (or 243068 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 46.

The spelling of 66662202664 in words is "sixty-six billion, six hundred sixty-two million, two hundred two thousand, six hundred sixty-four".