66464125168 has 20 divisors (see below), whose sum is σ = 147170563120. Its totient is φ = 28484625024.

The previous prime is 66464125127. The next prime is 66464125171. The reversal of 66464125168 is 86152146466.

It is a congruent number.

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, 296714733 + ... + 296714956.

It is an arithmetic number, because the mean of its divisors is an integer number (7358528156).

Almost surely, 2^66464125168 is an apocalyptic number.

It is an amenable number.

66464125168 is an abundant number, since it is smaller than the sum of its proper divisors (80706437952).

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

66464125168 is a wasteful number, since it uses less digits than its factorization.

66464125168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593429704 (or 593429698 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 49.

The spelling of 66464125168 in words is "sixty-six billion, four hundred sixty-four million, one hundred twenty-five thousand, one hundred sixty-eight".