128163540097 has 2 divisors, whose sum is σ = 128163540098. Its totient is φ = 128163540096.

The previous prime is 128163540077. The next prime is 128163540119. The reversal of 128163540097 is 790045361821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120548534401 + 7615005696 = 347201^2 + 87264^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128163540097 is a prime.

It is not a weakly prime, because it can be changed into another prime (128163540077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64081770048 + 64081770049.

It is an arithmetic number, because the mean of its divisors is an integer number (64081770049).

It is a 2-persistent number, because it is pandigital, and so is 2⋅128163540097 = 256327080194, but 3⋅128163540097 = 384490620291 is not.

Almost surely, 2^128163540097 is an apocalyptic number.

It is an amenable number.

128163540097 is a deficient number, since it is larger than the sum of its proper divisors (1).

128163540097 is an equidigital number, since it uses as much as digits as its factorization.

128163540097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 128163540097 in words is "one hundred twenty-eight billion, one hundred sixty-three million, five hundred forty thousand, ninety-seven".