42059120161 has 2 divisors, whose sum is σ = 42059120162. Its totient is φ = 42059120160.

The previous prime is 42059120111. The next prime is 42059120197. The reversal of 42059120161 is 16102195024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39346689600 + 2712430561 = 198360^2 + 52081^2 .

It is a cyclic number.

It is not a de Polignac number, because 42059120161 - 2³⁵ = 7699381793 is a prime.

It is not a weakly prime, because it can be changed into another prime (42059120111) 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, 21029560080 + 21029560081.

It is an arithmetic number, because the mean of its divisors is an integer number (21029560081).

Almost surely, 2^42059120161 is an apocalyptic number.

It is an amenable number.

42059120161 is a deficient number, since it is larger than the sum of its proper divisors (1).

42059120161 is an equidigital number, since it uses as much as digits as its factorization.

42059120161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 42059120161 in words is "forty-two billion, fifty-nine million, one hundred twenty thousand, one hundred sixty-one".