281106550656109 has 16 divisors (see below), whose sum is σ = 288921221304768. Its totient is φ = 273303388161792.

The previous prime is 281106550656091. The next prime is 281106550656193. The reversal of 281106550656109 is 901656055601182.

It is a cyclic number.

It is not a de Polignac number, because 281106550656109 - 2¹⁷ = 281106550525037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 281106550656109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281106550656809) 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, 264447694 + ... + 265508560.

It is an arithmetic number, because the mean of its divisors is an integer number (18057576331548).

Almost surely, 2^{281106550656109} is an apocalyptic number.

It is an amenable number.

281106550656109 is a deficient number, since it is larger than the sum of its proper divisors (7814670648659).

281106550656109 is a wasteful number, since it uses less digits than its factorization.

281106550656109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066284.

The product of its (nonzero) digits is 3888000, while the sum is 55.

The spelling of 281106550656109 in words is "two hundred eighty-one trillion, one hundred six billion, five hundred fifty million, six hundred fifty-six thousand, one hundred nine".