161110000101097 has 2 divisors, whose sum is σ = 161110000101098. Its totient is φ = 161110000101096.

The previous prime is 161110000101077. The next prime is 161110000101121. The reversal of 161110000101097 is 790101000011161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159201281015001 + 1908719086096 = 12617499^2 + 1381564^2 .

It is a cyclic number.

It is not a de Polignac number, because 161110000101097 - 2¹¹ = 161110000099049 is a prime.

It is not a weakly prime, because it can be changed into another prime (161110000101077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80555000050548 + 80555000050549.

It is an arithmetic number, because the mean of its divisors is an integer number (80555000050549).

Almost surely, 2^{161110000101097} is an apocalyptic number.

It is an amenable number.

161110000101097 is a deficient number, since it is larger than the sum of its proper divisors (1).

161110000101097 is an equidigital number, since it uses as much as digits as its factorization.

161110000101097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 28.

The spelling of 161110000101097 in words is "one hundred sixty-one trillion, one hundred ten billion, one hundred one thousand, ninety-seven".