55111062111 has 16 divisors (see below), whose sum is σ = 88918689024. Its totient is φ = 29639562624.

The previous prime is 55111062091. The next prime is 55111062143. The reversal of 55111062111 is 11126011155.

It is not a de Polignac number, because 55111062111 - 2¹⁰ = 55111061087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55111062511) 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 in 15 ways as a sum of consecutive naturals, for example, 77186005 + ... + 77186718.

It is an arithmetic number, because the mean of its divisors is an integer number (5557418064).

Almost surely, 2^55111062111 is an apocalyptic number.

55111062111 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

55111062111 is a deficient number, since it is larger than the sum of its proper divisors (33807626913).

55111062111 is a wasteful number, since it uses less digits than its factorization.

55111062111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154372750.

The product of its (nonzero) digits is 300, while the sum is 24.

Adding to 55111062111 its reverse (11126011155), we get a palindrome (66237073266).

The spelling of 55111062111 in words is "fifty-five billion, one hundred eleven million, sixty-two thousand, one hundred eleven".