68618066 has 16 divisors (see below), whose sum is σ = 115907328. Its totient is φ = 30183600.

The previous prime is 68618023. The next prime is 68618071. The reversal of 68618066 is 66081686.

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 7 ways as a sum of consecutive naturals, for example, 49625 + ... + 50988.

It is an arithmetic number, because the mean of its divisors is an integer number (7244208).

Almost surely, 2^68618066 is an apocalyptic number.

68618066 is a deficient number, since it is larger than the sum of its proper divisors (47289262).

68618066 is a wasteful number, since it uses less digits than its factorization.

68618066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100657.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 68618066 is about 8283.6022357426. The cubic root of 68618066 is about 409.3984157769.

The spelling of 68618066 in words is "sixty-eight million, six hundred eighteen thousand, sixty-six".