66163167 has 48 divisors (see below), whose sum is σ = 116663040. Its totient is φ = 35271936.

The previous prime is 66163151. The next prime is 66163177. The reversal of 66163167 is 76136166.

66163167 is a `hidden beast` number, since 6 + 616 + 31 + 6 + 7 = 666.

It is not a de Polignac number, because 66163167 - 2⁴ = 66163151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66163117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 174384 + ... + 174762.

It is an arithmetic number, because the mean of its divisors is an integer number (2430480).

Almost surely, 2^66163167 is an apocalyptic number.

66163167 is a deficient number, since it is larger than the sum of its proper divisors (50499873).

66163167 is a wasteful number, since it uses less digits than its factorization.

66163167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572 (or 569 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 66163167 is about 8134.0744402790. The cubic root of 66163167 is about 404.4567567907.

The spelling of 66163167 in words is "sixty-six million, one hundred sixty-three thousand, one hundred sixty-seven".