111551155544411 has 32 divisors (see below), whose sum is σ = 129347972582400. Its totient is φ = 95076407162880.

The previous prime is 111551155544383. The next prime is 111551155544429. The reversal of 111551155544411 is 114445551155111.

It is not a de Polignac number, because 111551155544411 - 2³⁸ = 111276277637467 is a prime.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (111551155544441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1001220275 + ... + 1001331683.

It is an arithmetic number, because the mean of its divisors is an integer number (4042124143200).

Almost surely, 2^{111551155544411} is an apocalyptic number.

111551155544411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111551155544411 is a deficient number, since it is larger than the sum of its proper divisors (17796817037989).

111551155544411 is a wasteful number, since it uses less digits than its factorization.

111551155544411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132059.

The product of its digits is 200000, while the sum is 44.

The spelling of 111551155544411 in words is "one hundred eleven trillion, five hundred fifty-one billion, one hundred fifty-five million, five hundred forty-four thousand, four hundred eleven".