550715510161 has 2 divisors, whose sum is σ = 550715510162. Its totient is φ = 550715510160.

The previous prime is 550715510143. The next prime is 550715510209. The reversal of 550715510161 is 161015517055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 430683750225 + 120031759936 = 656265^2 + 346456^2 .

It is a cyclic number.

It is not a de Polignac number, because 550715510161 - 2⁵ = 550715510129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 550715510161.

It is not a weakly prime, because it can be changed into another prime (550725510161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275357755080 + 275357755081.

It is an arithmetic number, because the mean of its divisors is an integer number (275357755081).

Almost surely, 2^550715510161 is an apocalyptic number.

It is an amenable number.

550715510161 is a deficient number, since it is larger than the sum of its proper divisors (1).

550715510161 is an equidigital number, since it uses as much as digits as its factorization.

550715510161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26250, while the sum is 37.

The spelling of 550715510161 in words is "five hundred fifty billion, seven hundred fifteen million, five hundred ten thousand, one hundred sixty-one".