711655172161 has 16 divisors (see below), whose sum is σ = 717200208144. Its totient is φ = 706134933504.

The previous prime is 711655172159. The next prime is 711655172219. The reversal of 711655172161 is 161271556117.

It can be written as a sum of positive squares in 8 ways, for example, as 216172923136 + 495482249025 = 464944^2 + 703905^2 .

It is a cyclic number.

It is not a de Polignac number, because 711655172161 - 2¹ = 711655172159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (711655172461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192493465 + ... + 192497161.

It is an arithmetic number, because the mean of its divisors is an integer number (44825013009).

Almost surely, 2^711655172161 is an apocalyptic number.

It is an amenable number.

711655172161 is a deficient number, since it is larger than the sum of its proper divisors (5545035983).

711655172161 is a wasteful number, since it uses less digits than its factorization.

711655172161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6660.

The product of its digits is 88200, while the sum is 43.

The spelling of 711655172161 in words is "seven hundred eleven billion, six hundred fifty-five million, one hundred seventy-two thousand, one hundred sixty-one".