166541244 has 24 divisors (see below), whose sum is σ = 390615120. Its totient is φ = 55225344.

The previous prime is 166541227. The next prime is 166541267. The reversal of 166541244 is 442145661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33639 + ... + 38270.

It is an arithmetic number, because the mean of its divisors is an integer number (16275630).

Almost surely, 2^166541244 is an apocalyptic number.

It is an amenable number.

166541244 is an abundant number, since it is smaller than the sum of its proper divisors (224073876).

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

166541244 is a wasteful number, since it uses less digits than its factorization.

166541244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72109 (or 72107 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 166541244 is about 12905.0859741421. The cubic root of 166541244 is about 550.1831279997.

The spelling of 166541244 in words is "one hundred sixty-six million, five hundred forty-one thousand, two hundred forty-four".