166289028 has 24 divisors (see below), whose sum is σ = 388301088. Its totient is φ = 55387776.

The previous prime is 166289017. The next prime is 166289033. The reversal of 166289028 is 820982661.

166289028 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14175 + ... + 23097.

It is an arithmetic number, because the mean of its divisors is an integer number (16179212).

Almost surely, 2^166289028 is an apocalyptic number.

It is an amenable number.

166289028 is an abundant number, since it is smaller than the sum of its proper divisors (222012060).

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

166289028 is a wasteful number, since it uses less digits than its factorization.

166289028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10483 (or 10481 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 166289028 is about 12895.3103103415. The cubic root of 166289028 is about 549.9052486914.

The spelling of 166289028 in words is "one hundred sixty-six million, two hundred eighty-nine thousand, twenty-eight".