550011666111 has 16 divisors (see below), whose sum is σ = 745847145600. Its totient is φ = 360426459168.

The previous prime is 550011666103. The next prime is 550011666119. The reversal of 550011666111 is 111666110055.

It is an interprime number because it is at equal distance from previous prime (550011666103) and next prime (550011666119).

It is not a de Polignac number, because 550011666111 - 2³ = 550011666103 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550011666119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1865820 + ... + 2140398.

It is an arithmetic number, because the mean of its divisors is an integer number (46615446600).

Almost surely, 2^550011666111 is an apocalyptic number.

550011666111 is a deficient number, since it is larger than the sum of its proper divisors (195835479489).

550011666111 is a wasteful number, since it uses less digits than its factorization.

550011666111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285958.

The product of its (nonzero) digits is 5400, while the sum is 33.

Adding to 550011666111 its reverse (111666110055), we get a palindrome (661677776166).

The spelling of 550011666111 in words is "five hundred fifty billion, eleven million, six hundred sixty-six thousand, one hundred eleven".