166837688812 has 24 divisors (see below), whose sum is σ = 294776820576. Its totient is φ = 82616878848.

The previous prime is 166837688807. The next prime is 166837688821. The reversal of 166837688812 is 218886738661.

166837688812 is digitally balanced in base 2, 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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447318 + ... + 730594.

It is an arithmetic number, because the mean of its divisors is an integer number (12282367524).

Almost surely, 2^166837688812 is an apocalyptic number.

It is an amenable number.

166837688812 is a deficient number, since it is larger than the sum of its proper divisors (127939131764).

166837688812 is a wasteful number, since it uses less digits than its factorization.

166837688812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284697 (or 284695 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 64.

The spelling of 166837688812 in words is "one hundred sixty-six billion, eight hundred thirty-seven million, six hundred eighty-eight thousand, eight hundred twelve".