68160234664 has 16 divisors (see below), whose sum is σ = 128208752820. Its totient is φ = 33971233920.

The previous prime is 68160234661. The next prime is 68160234689. The reversal of 68160234664 is 46643206186.

It can be written as a sum of positive squares in 2 ways, for example, as 59800789764 + 8359444900 = 244542^2 + 91430^2 .

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 3 ways as a sum of consecutive naturals, for example, 13607767 + ... + 13612774.

Almost surely, 2^68160234664 is an apocalyptic number.

It is an amenable number.

68160234664 is a deficient number, since it is larger than the sum of its proper divisors (60048518156).

68160234664 is a wasteful number, since it uses less digits than its factorization.

68160234664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27220860 (or 27220856 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 46.

The spelling of 68160234664 in words is "sixty-eight billion, one hundred sixty million, two hundred thirty-four thousand, six hundred sixty-four".