66285395792 has 80 divisors (see below), whose sum is σ = 161917315200. Its totient is φ = 25535262720.

The previous prime is 66285395749. The next prime is 66285395801. The reversal of 66285395792 is 29759358266.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192617 + ... + 411912.

It is an arithmetic number, because the mean of its divisors is an integer number (2023966440).

Almost surely, 2^66285395792 is an apocalyptic number.

It is an amenable number.

66285395792 is an abundant number, since it is smaller than the sum of its proper divisors (95631919408).

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

66285395792 is a wasteful number, since it uses less digits than its factorization.

66285395792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604644 (or 604638 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 62.

The spelling of 66285395792 in words is "sixty-six billion, two hundred eighty-five million, three hundred ninety-five thousand, seven hundred ninety-two".