5551105011111 has 20 divisors (see below), whose sum is σ = 9046245204744. Its totient is φ = 3364306066800.

The previous prime is 5551105011071. The next prime is 5551105011121. The reversal of 5551105011111 is 1111105011555.

5551105011111 is a `hidden beast` number, since 5 + 551 + 105 + 0 + 1 + 1 + 1 + 1 + 1 = 666.

It is not a de Polignac number, because 5551105011111 - 2⁶ = 5551105011047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551105011121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3115097320 + ... + 3115099101.

Almost surely, 2^{5551105011111} is an apocalyptic number.

5551105011111 is a deficient number, since it is larger than the sum of its proper divisors (3495140193633).

5551105011111 is a wasteful number, since it uses less digits than its factorization.

5551105011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6230196444 (or 6230196435 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 27.

The spelling of 5551105011111 in words is "five trillion, five hundred fifty-one billion, one hundred five million, eleven thousand, one hundred eleven".