166546473 has 16 divisors (see below), whose sum is σ = 232020096. Its totient is φ = 106064640.

The previous prime is 166546453. The next prime is 166546481. The reversal of 166546473 is 374645661.

166546473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166546473 - 2⁹ = 166545961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166546453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88563 + ... + 90423.

It is an arithmetic number, because the mean of its divisors is an integer number (14501256).

Almost surely, 2^166546473 is an apocalyptic number.

It is an amenable number.

166546473 is a deficient number, since it is larger than the sum of its proper divisors (65473623).

166546473 is a wasteful number, since it uses less digits than its factorization.

166546473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3184.

The product of its digits is 362880, while the sum is 42.

The square root of 166546473 is about 12905.2885670953. The cubic root of 166546473 is about 550.1888860878.

The spelling of 166546473 in words is "one hundred sixty-six million, five hundred forty-six thousand, four hundred seventy-three".