166471232 has 56 divisors (see below), whose sum is σ = 340778592. Its totient is φ = 80640000.

The previous prime is 166471229. The next prime is 166471237. The reversal of 166471232 is 232174661.

166471232 is nontrivially palindromic in base 7.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (166471237) 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 7 ways as a sum of consecutive naturals, for example, 663107 + ... + 663357.

It is an arithmetic number, because the mean of its divisors is an integer number (6085332).

Almost surely, 2^166471232 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 166471232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170389296).

166471232 is an abundant number, since it is smaller than the sum of its proper divisors (174307360).

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

166471232 is a wasteful number, since it uses less digits than its factorization.

166471232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547 (or 537 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 166471232 is about 12902.3731150514. The cubic root of 166471232 is about 550.1060203331.

The spelling of 166471232 in words is "one hundred sixty-six million, four hundred seventy-one thousand, two hundred thirty-two".