66178166322 has 8 divisors (see below), whose sum is σ = 132356332656. Its totient is φ = 22059388772.

The previous prime is 66178166309. The next prime is 66178166323. The reversal of 66178166322 is 22366187166.

66178166322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

66178166322 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (66178166323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5514847188 + ... + 5514847199.

It is an arithmetic number, because the mean of its divisors is an integer number (16544541582).

Almost surely, 2^66178166322 is an apocalyptic number.

66178166322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66178166322 is a wasteful number, since it uses less digits than its factorization.

66178166322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11029694392.

The product of its digits is 870912, while the sum is 48.

The spelling of 66178166322 in words is "sixty-six billion, one hundred seventy-eight million, one hundred sixty-six thousand, three hundred twenty-two".