166473345 has 48 divisors (see below), whose sum is σ = 285731712. Its totient is φ = 82736640.

The previous prime is 166473313. The next prime is 166473347. The reversal of 166473345 is 543374661.

It is not a de Polignac number, because 166473345 - 2⁵ = 166473313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166473347) 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 47 ways as a sum of consecutive naturals, for example, 384249 + ... + 384681.

It is an arithmetic number, because the mean of its divisors is an integer number (5952744).

Almost surely, 2^166473345 is an apocalyptic number.

166473345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166473345 is a deficient number, since it is larger than the sum of its proper divisors (119258367).

166473345 is a wasteful number, since it uses less digits than its factorization.

166473345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 531 counting only the distinct ones).

The product of its digits is 181440, while the sum is 39.

The square root of 166473345 is about 12902.4549989527. The cubic root of 166473345 is about 550.1083478005.

The spelling of 166473345 in words is "one hundred sixty-six million, four hundred seventy-three thousand, three hundred forty-five".