160731797797 has 2 divisors, whose sum is σ = 160731797798. Its totient is φ = 160731797796.

The previous prime is 160731797783. The next prime is 160731797893. The reversal of 160731797797 is 797797137061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93089671236 + 67642126561 = 305106^2 + 260081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-160731797797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160731797747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80365898898 + 80365898899.

It is an arithmetic number, because the mean of its divisors is an integer number (80365898899).

Almost surely, 2^160731797797 is an apocalyptic number.

It is an amenable number.

160731797797 is a deficient number, since it is larger than the sum of its proper divisors (1).

160731797797 is an equidigital number, since it uses as much as digits as its factorization.

160731797797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24504606, while the sum is 64.

The spelling of 160731797797 in words is "one hundred sixty billion, seven hundred thirty-one million, seven hundred ninety-seven thousand, seven hundred ninety-seven".