166583123 has 16 divisors (see below), whose sum is σ = 196319424. Its totient is φ = 138378240.

The previous prime is 166583093. The next prime is 166583129. The reversal of 166583123 is 321385661.

It is not a de Polignac number, because 166583123 - 2¹⁴ = 166566739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166583129) 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, 43211 + ... + 46907.

It is an arithmetic number, because the mean of its divisors is an integer number (12269964).

Almost surely, 2^166583123 is an apocalyptic number.

166583123 is a deficient number, since it is larger than the sum of its proper divisors (29736301).

166583123 is a wasteful number, since it uses less digits than its factorization.

166583123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3902.

The product of its digits is 25920, while the sum is 35.

The square root of 166583123 is about 12906.7084494847. The cubic root of 166583123 is about 550.2292410777.

The spelling of 166583123 in words is "one hundred sixty-six million, five hundred eighty-three thousand, one hundred twenty-three".