68678166 has 8 divisors (see below), whose sum is σ = 137356344. Its totient is φ = 22892720.

The previous prime is 68678153. The next prime is 68678173. The reversal of 68678166 is 66187686.

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

68678166 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 5723175 + ... + 5723186.

It is an arithmetic number, because the mean of its divisors is an integer number (17169543).

Almost surely, 2^68678166 is an apocalyptic number.

68678166 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.

68678166 is a wasteful number, since it uses less digits than its factorization.

68678166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11446366.

The product of its digits is 580608, while the sum is 48.

The square root of 68678166 is about 8287.2290905948. The cubic root of 68678166 is about 409.5179064895.

The spelling of 68678166 in words is "sixty-eight million, six hundred seventy-eight thousand, one hundred sixty-six".