161550600105571 has 2 divisors, whose sum is σ = 161550600105572. Its totient is φ = 161550600105570.

The previous prime is 161550600105563. The next prime is 161550600105701. The reversal of 161550600105571 is 175501006055161.

It is a weak prime.

It is an emirp because it is prime and its reverse (175501006055161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161550600105571 - 2³ = 161550600105563 is a prime.

It is not a weakly prime, because it can be changed into another prime (161550600105511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80775300052785 + 80775300052786.

It is an arithmetic number, because the mean of its divisors is an integer number (80775300052786).

Almost surely, 2^{161550600105571} is an apocalyptic number.

161550600105571 is a deficient number, since it is larger than the sum of its proper divisors (1).

161550600105571 is an equidigital number, since it uses as much as digits as its factorization.

161550600105571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157500, while the sum is 43.

The spelling of 161550600105571 in words is "one hundred sixty-one trillion, five hundred fifty billion, six hundred million, one hundred five thousand, five hundred seventy-one".