7889180166 has 96 divisors (see below), whose sum is σ = 20312667648. Its totient is φ = 2248041600.

The previous prime is 7889180149. The next prime is 7889180179. The reversal of 7889180166 is 6610819887.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1361311 + ... + 1367093.

It is an arithmetic number, because the mean of its divisors is an integer number (211590288).

Almost surely, 2^7889180166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7889180166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10156333824).

7889180166 is an abundant number, since it is smaller than the sum of its proper divisors (12423487482).

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

7889180166 is a wasteful number, since it uses less digits than its factorization.

7889180166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6208 (or 6196 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The square root of 7889180166 is about 88821.0569966379. The cubic root of 7889180166 is about 1990.7220401179.

The spelling of 7889180166 in words is "seven billion, eight hundred eighty-nine million, one hundred eighty thousand, one hundred sixty-six".