166478928 has 160 divisors (see below), whose sum is σ = 553869312. Its totient is φ = 41817600.

The previous prime is 166478927. The next prime is 166478941. The reversal of 166478928 is 829874661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166478927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113850 + ... + 115302.

Almost surely, 2^166478928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166478928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276934656).

166478928 is an abundant number, since it is smaller than the sum of its proper divisors (387390384).

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

166478928 is a wasteful number, since it uses less digits than its factorization.

166478928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513 (or 1507 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 166478928 is about 12902.6713513133. The cubic root of 166478928 is about 550.1144973747.

The spelling of 166478928 in words is "one hundred sixty-six million, four hundred seventy-eight thousand, nine hundred twenty-eight".