68851066 has 8 divisors (see below), whose sum is σ = 104969844. Its totient is φ = 33861120.

The previous prime is 68851051. The next prime is 68851067. The reversal of 68851066 is 66015886.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 45954841 + 22896225 = 6779^2 + 4785^2 .

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

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (68851067) 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, 282055 + ... + 282298.

Almost surely, 2^68851066 is an apocalyptic number.

68851066 is a deficient number, since it is larger than the sum of its proper divisors (36118778).

68851066 is a wasteful number, since it uses less digits than its factorization.

68851066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564416.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 68851066 is about 8297.6542468339. The cubic root of 68851066 is about 409.8612776774.

The spelling of 68851066 in words is "sixty-eight million, eight hundred fifty-one thousand, sixty-six".