166888828 has 24 divisors (see below), whose sum is σ = 305206272. Its totient is φ = 79697904.

The previous prime is 166888807. The next prime is 166888829. The reversal of 166888828 is 828888661.

It is a happy number.

166888828 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166888828² = 55703761822427168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166888829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121401 + ... + 122767.

It is an arithmetic number, because the mean of its divisors is an integer number (12716928).

Almost surely, 2^166888828 is an apocalyptic number.

It is an amenable number.

166888828 is a deficient number, since it is larger than the sum of its proper divisors (138317444).

166888828 is a wasteful number, since it uses less digits than its factorization.

166888828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721 (or 2719 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 55.

The square root of 166888828 is about 12918.5458934046. The cubic root of 166888828 is about 550.5656197704.

The spelling of 166888828 in words is "one hundred sixty-six million, eight hundred eighty-eight thousand, eight hundred twenty-eight".