66322802304 has 192 divisors, whose sum is σ = 220448666880. Its totient is φ = 18915532800.

The previous prime is 66322802173. The next prime is 66322802311. The reversal of 66322802304 is 40320822366.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61489 + ... + 369359.

It is an arithmetic number, because the mean of its divisors is an integer number (1148170140).

Almost surely, 2^66322802304 is an apocalyptic number.

66322802304 is a gapful number since it is divisible by the number (64) 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 66322802304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110224333440).

66322802304 is an abundant number, since it is smaller than the sum of its proper divisors (154125864576).

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

66322802304 is a wasteful number, since it uses less digits than its factorization.

66322802304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307919 (or 307904 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 66322802304 in words is "sixty-six billion, three hundred twenty-two million, eight hundred two thousand, three hundred four".