166180919842 has 32 divisors (see below), whose sum is σ = 304625888640. Its totient is φ = 66367276800.

The previous prime is 166180919789. The next prime is 166180919887. The reversal of 166180919842 is 248919081661.

166180919842 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 3432592 + ... + 3480667.

It is an arithmetic number, because the mean of its divisors is an integer number (9519559020).

Almost surely, 2^166180919842 is an apocalyptic number.

166180919842 is a deficient number, since it is larger than the sum of its proper divisors (138444968798).

166180919842 is a wasteful number, since it uses less digits than its factorization.

166180919842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6913386.

The product of its (nonzero) digits is 1492992, while the sum is 55.

The spelling of 166180919842 in words is "one hundred sixty-six billion, one hundred eighty million, nine hundred nineteen thousand, eight hundred forty-two".