166845027028 has 24 divisors (see below), whose sum is σ = 311933367200. Its totient is φ = 77852272608.

The previous prime is 166845026983. The next prime is 166845027101. The reversal of 166845027028 is 820720548661.

166845027028 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 7 ways as a sum of consecutive naturals, for example, 16377963 + ... + 16388146.

Almost surely, 2^166845027028 is an apocalyptic number.

It is an amenable number.

166845027028 is a deficient number, since it is larger than the sum of its proper divisors (145088340172).

166845027028 is a wasteful number, since it uses less digits than its factorization.

166845027028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32766199 (or 32766197 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 166845027028 in words is "one hundred sixty-six billion, eight hundred forty-five million, twenty-seven thousand, twenty-eight".