166180542940 has 12 divisors (see below), whose sum is σ = 348979140216. Its totient is φ = 66472217168.

The previous prime is 166180542907. The next prime is 166180542959. The reversal of 166180542940 is 49245081661.

It is a happy number.

166180542940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4154513554 + ... + 4154513593.

It is an arithmetic number, because the mean of its divisors is an integer number (29081595018).

Almost surely, 2^166180542940 is an apocalyptic number.

166180542940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166180542940 is an abundant number, since it is smaller than the sum of its proper divisors (182798597276).

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

166180542940 is a wasteful number, since it uses less digits than its factorization.

166180542940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8309027156 (or 8309027154 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 166180542940 in words is "one hundred sixty-six billion, one hundred eighty million, five hundred forty-two thousand, nine hundred forty".