160731797893 has 2 divisors, whose sum is σ = 160731797894. Its totient is φ = 160731797892.

The previous prime is 160731797797. The next prime is 160731797969. The reversal of 160731797893 is 398797137061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112304073924 + 48427723969 = 335118^2 + 220063^2 .

It is a cyclic number.

It is not a de Polignac number, because 160731797893 - 2²¹ = 160729700741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160731797293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80365898946 + 80365898947.

It is an arithmetic number, because the mean of its divisors is an integer number (80365898947).

Almost surely, 2^160731797893 is an apocalyptic number.

It is an amenable number.

160731797893 is a deficient number, since it is larger than the sum of its proper divisors (1).

160731797893 is an equidigital number, since it uses as much as digits as its factorization.

160731797893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12002256, while the sum is 61.

The spelling of 160731797893 in words is "one hundred sixty billion, seven hundred thirty-one million, seven hundred ninety-seven thousand, eight hundred ninety-three".