66069788922592 has 384 divisors, whose sum is σ = 168662722314240. Its totient is φ = 24777219962880.

The previous prime is 66069788922583. The next prime is 66069788922647. The reversal of 66069788922592 is 29522988796066.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1082601583 + ... + 1082662609.

It is an arithmetic number, because the mean of its divisors is an integer number (439225839360).

Almost surely, 2^{66069788922592} is an apocalyptic number.

66069788922592 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66069788922592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84331361157120).

66069788922592 is an abundant number, since it is smaller than the sum of its proper divisors (102592933391648).

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

66069788922592 is a wasteful number, since it uses less digits than its factorization.

66069788922592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61334 (or 61326 counting only the distinct ones).

The product of its (nonzero) digits is 2821754880, while the sum is 79.

The spelling of 66069788922592 in words is "sixty-six trillion, sixty-nine billion, seven hundred eighty-eight million, nine hundred twenty-two thousand, five hundred ninety-two".