68338666 has 16 divisors (see below), whose sum is σ = 113662368. Its totient is φ = 30553200.

The previous prime is 68338661. The next prime is 68338679. The reversal of 68338666 is 66683386.

It is not an unprimeable number, because it can be changed into a prime (68338661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24120 + ... + 26803.

It is an arithmetic number, because the mean of its divisors is an integer number (7103898).

Almost surely, 2^68338666 is an apocalyptic number.

68338666 is a deficient number, since it is larger than the sum of its proper divisors (45323702).

68338666 is a wasteful number, since it uses less digits than its factorization.

68338666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50997.

The product of its digits is 746496, while the sum is 46.

The square root of 68338666 is about 8266.7203896104. The cubic root of 68338666 is about 408.8419951484.

The spelling of 68338666 in words is "sixty-eight million, three hundred thirty-eight thousand, six hundred sixty-six".