66541167 has 108 divisors (see below), whose sum is σ = 130089960. Its totient is φ = 32598720.

The previous prime is 66541141. The next prime is 66541177. The reversal of 66541167 is 76114566.

It is not a de Polignac number, because 66541167 - 2⁶ = 66541103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66541177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1547448 + ... + 1547490.

Almost surely, 2^66541167 is an apocalyptic number.

66541167 is a deficient number, since it is larger than the sum of its proper divisors (63548793).

66541167 is a wasteful number, since it uses less digits than its factorization.

66541167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 93 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 66541167 is about 8157.2769353504. The cubic root of 66541167 is about 405.2255351039.

The spelling of 66541167 in words is "sixty-six million, five hundred forty-one thousand, one hundred sixty-seven".