166545384 has 32 divisors (see below), whose sum is σ = 422581920. Its totient is φ = 54686016.

The previous prime is 166545383. The next prime is 166545391. The reversal of 166545384 is 483545661.

It is not an unprimeable number, because it can be changed into a prime (166545383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50179 + ... + 53394.

It is an arithmetic number, because the mean of its divisors is an integer number (13205685).

Almost surely, 2^166545384 is an apocalyptic number.

It is an amenable number.

166545384 is an abundant number, since it is smaller than the sum of its proper divisors (256036536).

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

166545384 is a wasteful number, since it uses less digits than its factorization.

166545384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103649 (or 103645 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

The square root of 166545384 is about 12905.2463750213. The cubic root of 166545384 is about 550.1876869089.

The spelling of 166545384 in words is "one hundred sixty-six million, five hundred forty-five thousand, three hundred eighty-four".