66348022180 has 192 divisors, whose sum is σ = 161404379136. Its totient is φ = 22684032000.

The previous prime is 66348022133. The next prime is 66348022187. The reversal of 66348022180 is 8122084366.

It is not an unprimeable number, because it can be changed into a prime (66348022187) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68329095 + ... + 68330065.

It is an arithmetic number, because the mean of its divisors is an integer number (840647808).

Almost surely, 2^66348022180 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 66348022180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80702189568).

66348022180 is an abundant number, since it is smaller than the sum of its proper divisors (95056356956).

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

66348022180 is a wasteful number, since it uses less digits than its factorization.

66348022180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298 (or 1296 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 66348022180 in words is "sixty-six billion, three hundred forty-eight million, twenty-two thousand, one hundred eighty".