66343167 has 24 divisors (see below), whose sum is σ = 104923728. Its totient is φ = 40060800.

The previous prime is 66343159. The next prime is 66343187. The reversal of 66343167 is 76134366.

It is a happy number.

66343167 is a `hidden beast` number, since 6 + 634 + 3 + 16 + 7 = 666.

It is not a de Polignac number, because 66343167 - 2³ = 66343159 is a prime.

It is a super-4 number, since 4×66343167⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66343127) 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 23 ways as a sum of consecutive naturals, for example, 29917 + ... + 32057.

It is an arithmetic number, because the mean of its divisors is an integer number (4371822).

Almost surely, 2^66343167 is an apocalyptic number.

66343167 is a deficient number, since it is larger than the sum of its proper divisors (38580561).

66343167 is a wasteful number, since it uses less digits than its factorization.

66343167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471 (or 2468 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 66343167 is about 8145.1314906513. The cubic root of 66343167 is about 404.8232058716.

It can be divided in two parts, 6634 and 3167, that added together give a square (9801 = 99²).

The spelling of 66343167 in words is "sixty-six million, three hundred forty-three thousand, one hundred sixty-seven".