161060555061097 has 2 divisors, whose sum is σ = 161060555061098. Its totient is φ = 161060555061096.

The previous prime is 161060555061023. The next prime is 161060555061137. The reversal of 161060555061097 is 790160555060161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158182337627136 + 2878217433961 = 12577056^2 + 1696531^2 .

It is a cyclic number.

It is not a de Polignac number, because 161060555061097 - 2²³ = 161060546672489 is a prime.

It is a super-2 number, since 2×161060555061097² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (161060555041097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80530277530548 + 80530277530549.

It is an arithmetic number, because the mean of its divisors is an integer number (80530277530549).

Almost surely, 2^{161060555061097} is an apocalyptic number.

It is an amenable number.

161060555061097 is a deficient number, since it is larger than the sum of its proper divisors (1).

161060555061097 is an equidigital number, since it uses as much as digits as its factorization.

161060555061097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701000, while the sum is 52.

The spelling of 161060555061097 in words is "one hundred sixty-one trillion, sixty billion, five hundred fifty-five million, sixty-one thousand, ninety-seven".