5521342431161 has 2 divisors, whose sum is σ = 5521342431162. Its totient is φ = 5521342431160.

The previous prime is 5521342431097. The next prime is 5521342431259. The reversal of 5521342431161 is 1611342431255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3143174410000 + 2378168021161 = 1772900^2 + 1542131^2 .

It is a cyclic number.

It is not a de Polignac number, because 5521342431161 - 2⁶ = 5521342431097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5521342431061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2760671215580 + 2760671215581.

It is an arithmetic number, because the mean of its divisors is an integer number (2760671215581).

Almost surely, 2^{5521342431161} is an apocalyptic number.

It is an amenable number.

5521342431161 is a deficient number, since it is larger than the sum of its proper divisors (1).

5521342431161 is an equidigital number, since it uses as much as digits as its factorization.

5521342431161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 38.

The spelling of 5521342431161 in words is "five trillion, five hundred twenty-one billion, three hundred forty-two million, four hundred thirty-one thousand, one hundred sixty-one".