66922339344 has 320 divisors, whose sum is σ = 212129280000. Its totient is φ = 17767766016.

The previous prime is 66922339343. The next prime is 66922339369. The reversal of 66922339344 is 44393322966.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (66922339343) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 44643907 + ... + 44645405.

It is an arithmetic number, because the mean of its divisors is an integer number (662904000).

Almost surely, 2^66922339344 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 66922339344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106064640000).

66922339344 is an abundant number, since it is smaller than the sum of its proper divisors (145206940656).

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

66922339344 is a wasteful number, since it uses less digits than its factorization.

66922339344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702 (or 1696 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 51.

The spelling of 66922339344 in words is "sixty-six billion, nine hundred twenty-two million, three hundred thirty-nine thousand, three hundred forty-four".