166390848 has 168 divisors, whose sum is σ = 533286208. Its totient is φ = 51134976.

The previous prime is 166390841. The next prime is 166390867. The reversal of 166390848 is 848093661.

166390848 is a `hidden beast` number, since 1 + 6 + 639 + 0 + 8 + 4 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166390841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201765 + ... + 202587.

Almost surely, 2^166390848 is an apocalyptic number.

166390848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166390848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266643104).

166390848 is an abundant number, since it is smaller than the sum of its proper divisors (366895360).

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

166390848 is an equidigital number, since it uses as much as digits as its factorization.

166390848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 166390848 is about 12899.2576530590. The cubic root of 166390848 is about 550.0174628064.

The spelling of 166390848 in words is "one hundred sixty-six million, three hundred ninety thousand, eight hundred forty-eight".