667224159 has 32 divisors (see below), whose sum is σ = 1074977280. Its totient is φ = 359603712.

The previous prime is 667224157. The next prime is 667224169. The reversal of 667224159 is 951422766.

667224159 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 667224159 - 2¹ = 667224157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 667224159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667224157) 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, 89379 + ... + 96555.

It is an arithmetic number, because the mean of its divisors is an integer number (33593040).

Almost surely, 2^667224159 is an apocalyptic number.

667224159 is a deficient number, since it is larger than the sum of its proper divisors (407753121).

667224159 is a wasteful number, since it uses less digits than its factorization.

667224159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7439.

The product of its digits is 181440, while the sum is 42.

The square root of 667224159 is about 25830.6825113081. The cubic root of 667224159 is about 873.8239040969.

The spelling of 667224159 in words is "six hundred sixty-seven million, two hundred twenty-four thousand, one hundred fifty-nine".