166800159 has 12 divisors (see below), whose sum is σ = 241351656. Its totient is φ = 111007152.

The previous prime is 166800143. The next prime is 166800167. The reversal of 166800159 is 951008661.

It is not a de Polignac number, because 166800159 - 2⁴ = 166800143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166800059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10504 + ... + 21069.

It is an arithmetic number, because the mean of its divisors is an integer number (20112638).

Almost surely, 2^166800159 is an apocalyptic number.

166800159 is a deficient number, since it is larger than the sum of its proper divisors (74551497).

166800159 is a wasteful number, since it uses less digits than its factorization.

166800159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32166 (or 32163 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 166800159 is about 12915.1135883507. The cubic root of 166800159 is about 550.4680962635.

The spelling of 166800159 in words is "one hundred sixty-six million, eight hundred thousand, one hundred fifty-nine".