166532224 has 16 divisors (see below), whose sum is σ = 331763670. Its totient is φ = 83266048.

The previous prime is 166532209. The next prime is 166532231. The reversal of 166532224 is 422235661.

It can be written as a sum of positive squares in only one way, i.e., 154753600 + 11778624 = 12440^2 + 3432^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 650389 + ... + 650644.

Almost surely, 2^166532224 is an apocalyptic number.

It is an amenable number.

166532224 is a deficient number, since it is larger than the sum of its proper divisors (165231446).

166532224 is an equidigital number, since it uses as much as digits as its factorization.

166532224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301047 (or 1301035 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 166532224 is about 12904.7364947914. The cubic root of 166532224 is about 550.1731950419.

Adding to 166532224 its reverse (422235661), we get a palindrome (588767885).

The spelling of 166532224 in words is "one hundred sixty-six million, five hundred thirty-two thousand, two hundred twenty-four".