68160234665 has 8 divisors (see below), whose sum is σ = 81793878408. Its totient is φ = 54527123200.

The previous prime is 68160234661. The next prime is 68160234689. The reversal of 68160234665 is 56643206186.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23934565264 + 44225669401 = 154708^2 + 210299^2 .

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

It is not a de Polignac number, because 68160234665 - 2² = 68160234661 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68160234661) 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, 247715 + ... + 444615.

It is an arithmetic number, because the mean of its divisors is an integer number (10224234801).

Almost surely, 2^68160234665 is an apocalyptic number.

It is an amenable number.

68160234665 is a deficient number, since it is larger than the sum of its proper divisors (13633643743).

68160234665 is a wasteful number, since it uses less digits than its factorization.

68160234665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266139.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 68160234665 in words is "sixty-eight billion, one hundred sixty million, two hundred thirty-four thousand, six hundred sixty-five".