161410929039361 has 2 divisors, whose sum is σ = 161410929039362. Its totient is φ = 161410929039360.

The previous prime is 161410929039337. The next prime is 161410929039413. The reversal of 161410929039361 is 163930929014161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158889680471025 + 2521248568336 = 12605145^2 + 1587844^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161410929039361 is a prime.

It is not a weakly prime, because it can be changed into another prime (161410929039301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80705464519680 + 80705464519681.

It is an arithmetic number, because the mean of its divisors is an integer number (80705464519681).

Almost surely, 2^{161410929039361} is an apocalyptic number.

It is an amenable number.

161410929039361 is a deficient number, since it is larger than the sum of its proper divisors (1).

161410929039361 is an equidigital number, since it uses as much as digits as its factorization.

161410929039361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1889568, while the sum is 55.

The spelling of 161410929039361 in words is "one hundred sixty-one trillion, four hundred ten billion, nine hundred twenty-nine million, thirty-nine thousand, three hundred sixty-one".