5105555061111 has 16 divisors (see below), whose sum is σ = 7961879238400. Its totient is φ = 3224561090904.

The previous prime is 5105555061097. The next prime is 5105555061119. The reversal of 5105555061111 is 1111605555015.

5105555061111 is a `hidden beast` number, since 51 + 0 + 55 + 550 + 6 + 1 + 1 + 1 + 1 = 666.

It is not a de Polignac number, because 5105555061111 - 2¹³ = 5105555052919 is a prime.

It is a super-2 number, since 2×5105555061111² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5105555061119) 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, 4976174011 + ... + 4976175036.

It is an arithmetic number, because the mean of its divisors is an integer number (497617452400).

Almost surely, 2^{5105555061111} is an apocalyptic number.

5105555061111 is a deficient number, since it is larger than the sum of its proper divisors (2856324177289).

5105555061111 is a wasteful number, since it uses less digits than its factorization.

5105555061111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9952349075 (or 9952349069 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 36.

The spelling of 5105555061111 in words is "five trillion, one hundred five billion, five hundred fifty-five million, sixty-one thousand, one hundred eleven".