549428726166 has 8 divisors (see below), whose sum is σ = 1098857452344. Its totient is φ = 183142908720.

The previous prime is 549428726141. The next prime is 549428726177. The reversal of 549428726166 is 661627824945.

It is a happy number.

549428726166 is digitally balanced in base 4, 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.

549428726166 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45785727175 + ... + 45785727186.

It is an arithmetic number, because the mean of its divisors is an integer number (137357181543).

Almost surely, 2^549428726166 is an apocalyptic number.

549428726166 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.

549428726166 is a wasteful number, since it uses less digits than its factorization.

549428726166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91571454366.

The product of its digits is 34836480, while the sum is 60.

The spelling of 549428726166 in words is "five hundred forty-nine billion, four hundred twenty-eight million, seven hundred twenty-six thousand, one hundred sixty-six".