161341611029 has 2 divisors, whose sum is σ = 161341611030. Its totient is φ = 161341611028.

The previous prime is 161341610987. The next prime is 161341611061. The reversal of 161341611029 is 920116143161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161301034129 + 40576900 = 401623^2 + 6370^2 .

It is an emirp because it is prime and its reverse (920116143161) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161341611029 is a prime.

It is a super-2 number, since 2×161341611029² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161341611029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161341611929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80670805514 + 80670805515.

It is an arithmetic number, because the mean of its divisors is an integer number (80670805515).

Almost surely, 2^161341611029 is an apocalyptic number.

It is an amenable number.

161341611029 is a deficient number, since it is larger than the sum of its proper divisors (1).

161341611029 is an equidigital number, since it uses as much as digits as its factorization.

161341611029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 161341611029 in words is "one hundred sixty-one billion, three hundred forty-one million, six hundred eleven thousand, twenty-nine".