68135166 has 24 divisors (see below), whose sum is σ = 161047224. Its totient is φ = 20646960.

The previous prime is 68135161. The next prime is 68135183. The reversal of 68135166 is 66153186.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 68135166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68135161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171861 + ... + 172256.

It is an arithmetic number, because the mean of its divisors is an integer number (6710301).

Almost surely, 2^68135166 is an apocalyptic number.

68135166 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

68135166 is an abundant number, since it is smaller than the sum of its proper divisors (92912058).

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

68135166 is a wasteful number, since it uses less digits than its factorization.

68135166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344136 (or 344133 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 68135166 is about 8254.4028251594. The cubic root of 68135166 is about 408.4357728640.

The spelling of 68135166 in words is "sixty-eight million, one hundred thirty-five thousand, one hundred sixty-six".