170020610161 has 2 divisors, whose sum is σ = 170020610162. Its totient is φ = 170020610160.

The previous prime is 170020610159. The next prime is 170020610167. The reversal of 170020610161 is 161016020071.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152817664561 + 17202945600 = 390919^2 + 131160^2 .

It is a cyclic number.

It is not a de Polignac number, because 170020610161 - 2¹ = 170020610159 is a prime.

Together with 170020610159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (170020610167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85010305080 + 85010305081.

It is an arithmetic number, because the mean of its divisors is an integer number (85010305081).

Almost surely, 2^170020610161 is an apocalyptic number.

It is an amenable number.

170020610161 is a deficient number, since it is larger than the sum of its proper divisors (1).

170020610161 is an equidigital number, since it uses as much as digits as its factorization.

170020610161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 170020610161 in words is "one hundred seventy billion, twenty million, six hundred ten thousand, one hundred sixty-one".