68030665 has 16 divisors (see below), whose sum is σ = 88128000. Its totient is φ = 50260672.

The previous prime is 68030663. The next prime is 68030681. The reversal of 68030665 is 56603086.

It is a cyclic number.

It is not a de Polignac number, because 68030665 - 2¹ = 68030663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68030665.

It is not an unprimeable number, because it can be changed into a prime (68030663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6865 + ... + 13534.

It is an arithmetic number, because the mean of its divisors is an integer number (5508000).

Almost surely, 2^68030665 is an apocalyptic number.

It is an amenable number.

68030665 is a deficient number, since it is larger than the sum of its proper divisors (20097335).

68030665 is a wasteful number, since it uses less digits than its factorization.

68030665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20456.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 68030665 is about 8248.0703803981. The cubic root of 68030665 is about 408.2268558505.

The spelling of 68030665 in words is "sixty-eight million, thirty thousand, six hundred sixty-five".