166500159 has 32 divisors (see below), whose sum is σ = 272687616. Its totient is φ = 88197120.

The previous prime is 166500143. The next prime is 166500203. The reversal of 166500159 is 951005661.

It is not a de Polignac number, because 166500159 - 2⁴ = 166500143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166500109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20439 + ... + 27399.

It is an arithmetic number, because the mean of its divisors is an integer number (8521488).

Almost surely, 2^166500159 is an apocalyptic number.

166500159 is a deficient number, since it is larger than the sum of its proper divisors (106187457).

166500159 is a wasteful number, since it uses less digits than its factorization.

166500159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7055.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 166500159 is about 12903.4940616873. The cubic root of 166500159 is about 550.1378816844.

The spelling of 166500159 in words is "one hundred sixty-six million, five hundred thousand, one hundred fifty-nine".