551106111128 has 32 divisors (see below), whose sum is σ = 1074442872960. Its totient is φ = 264717776640.

The previous prime is 551106111091. The next prime is 551106111131. The reversal of 551106111128 is 821111601155.

It is a junction number, because it is equal to n+sod(n) for n = 551106111094 and 551106111103.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8076251 + ... + 8144202.

It is an arithmetic number, because the mean of its divisors is an integer number (33576339780).

Almost surely, 2^551106111128 is an apocalyptic number.

It is an amenable number.

551106111128 is a deficient number, since it is larger than the sum of its proper divisors (523336761832).

551106111128 is a wasteful number, since it uses less digits than its factorization.

551106111128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16220627 (or 16220623 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 32.

The spelling of 551106111128 in words is "five hundred fifty-one billion, one hundred six million, one hundred eleven thousand, one hundred twenty-eight".