165051056105109 has 8 divisors (see below), whose sum is σ = 244520083118720. Its totient is φ = 110034037403388.

The previous prime is 165051056105099. The next prime is 165051056105147. The reversal of 165051056105109 is 901501650150561.

165051056105109 is a `hidden beast` number, since 1 + 6 + 5 + 0 + 5 + 10 + 5 + 610 + 5 + 10 + 9 = 666.

It is not a de Polignac number, because 165051056105109 - 2¹⁵ = 165051056072341 is a prime.

It is a super-2 number, since 2×165051056105109² (a number of 29 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 (165051056105189) 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 7 ways as a sum of consecutive naturals, for example, 3056501038957 + ... + 3056501039010.

It is an arithmetic number, because the mean of its divisors is an integer number (30565010389840).

Almost surely, 2^{165051056105109} is an apocalyptic number.

It is an amenable number.

165051056105109 is a deficient number, since it is larger than the sum of its proper divisors (79469027013611).

165051056105109 is an equidigital number, since it uses as much as digits as its factorization.

165051056105109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6113002077976 (or 6113002077970 counting only the distinct ones).

The product of its (nonzero) digits is 202500, while the sum is 45.

The spelling of 165051056105109 in words is "one hundred sixty-five trillion, fifty-one billion, fifty-six million, one hundred five thousand, one hundred nine".