1550422405111 has 2 divisors, whose sum is σ = 1550422405112. Its totient is φ = 1550422405110.

The previous prime is 1550422405087. The next prime is 1550422405141. The reversal of 1550422405111 is 1115042240551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1550422405111 - 2⁷ = 1550422404983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1550422405141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775211202555 + 775211202556.

It is an arithmetic number, because the mean of its divisors is an integer number (775211202556).

Almost surely, 2^{1550422405111} is an apocalyptic number.

1550422405111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550422405111 is an equidigital number, since it uses as much as digits as its factorization.

1550422405111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8000, while the sum is 31.

Adding to 1550422405111 its reverse (1115042240551), we get a palindrome (2665464645662).

The spelling of 1550422405111 in words is "one trillion, five hundred fifty billion, four hundred twenty-two million, four hundred five thousand, one hundred eleven".