68406166 has 4 divisors (see below), whose sum is σ = 102609252. Its totient is φ = 34203082.

The previous prime is 68406161. The next prime is 68406167. The reversal of 68406166 is 66160486.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68406161) 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 as a sum of consecutive naturals, namely, 17101540 + ... + 17101543.

It is an arithmetic number, because the mean of its divisors is an integer number (25652313).

Almost surely, 2^68406166 is an apocalyptic number.

68406166 is a deficient number, since it is larger than the sum of its proper divisors (34203086).

68406166 is a wasteful number, since it uses less digits than its factorization.

68406166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34203085.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 68406166 is about 8270.8020167333. The cubic root of 68406166 is about 408.9765590549.

The spelling of 68406166 in words is "sixty-eight million, four hundred six thousand, one hundred sixty-six".