68387166 has 40 divisors (see below), whose sum is σ = 154391160. Its totient is φ = 22624272.

The previous prime is 68387093. The next prime is 68387173. The reversal of 68387166 is 66178386.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21000 + ... + 24036.

It is an arithmetic number, because the mean of its divisors is an integer number (3859779).

Almost surely, 2^68387166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68387166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77195580).

68387166 is an abundant number, since it is smaller than the sum of its proper divisors (86003994).

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

68387166 is a wasteful number, since it uses less digits than its factorization.

68387166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190 (or 3181 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 68387166 is about 8269.6533180055. The cubic root of 68387166 is about 408.9386907622.

The spelling of 68387166 in words is "sixty-eight million, three hundred eighty-seven thousand, one hundred sixty-six".