166632345 has 24 divisors (see below), whose sum is σ = 315087552. Its totient is φ = 80791200.

The previous prime is 166632307. The next prime is 166632359. The reversal of 166632345 is 543236661.

It is not a de Polignac number, because 166632345 - 2⁹ = 166631833 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167821 + ... + 168810.

It is an arithmetic number, because the mean of its divisors is an integer number (13128648).

Almost surely, 2^166632345 is an apocalyptic number.

166632345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166632345 is a deficient number, since it is larger than the sum of its proper divisors (148455207).

166632345 is a wasteful number, since it uses less digits than its factorization.

166632345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336653 (or 336650 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 166632345 is about 12908.6151464826. The cubic root of 166632345 is about 550.2834296736.

The spelling of 166632345 in words is "one hundred sixty-six million, six hundred thirty-two thousand, three hundred forty-five".