67166166 has 8 divisors (see below), whose sum is σ = 134332344. Its totient is φ = 22388720.

The previous prime is 67166161. The next prime is 67166171. The reversal of 67166166 is 66166176.

It is an interprime number because it is at equal distance from previous prime (67166161) and next prime (67166171).

It is a sphenic number, since it is the product of 3 distinct primes.

67166166 is an admirable number.

It is a super-2 number, since 2×67166166² = 9022587710279112, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67166161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5597175 + ... + 5597186.

It is an arithmetic number, because the mean of its divisors is an integer number (16791543).

Almost surely, 2^67166166 is an apocalyptic number.

67166166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67166166 is a wasteful number, since it uses less digits than its factorization.

67166166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11194366.

The product of its digits is 54432, while the sum is 39.

The square root of 67166166 is about 8195.4966902562. The cubic root of 67166166 is about 406.4902996162.

The spelling of 67166166 in words is "sixty-seven million, one hundred sixty-six thousand, one hundred sixty-six".