66622846592 has 128 divisors (see below), whose sum is σ = 148716000000. Its totient is φ = 29564846080.

The previous prime is 66622846547. The next prime is 66622846613. The reversal of 66622846592 is 29564822666.

It is a tau number, because it is divible by the number of its divisors (128).

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 15 ways as a sum of consecutive naturals, for example, 3544034 + ... + 3562782.

It is an arithmetic number, because the mean of its divisors is an integer number (1161843750).

Almost surely, 2^66622846592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66622846592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74358000000).

66622846592 is an abundant number, since it is smaller than the sum of its proper divisors (82093153408).

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

66622846592 is a wasteful number, since it uses less digits than its factorization.

66622846592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18874 (or 18862 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 56.

The spelling of 66622846592 in words is "sixty-six billion, six hundred twenty-two million, eight hundred forty-six thousand, five hundred ninety-two".