169838515161 has 108 divisors (see below), whose sum is σ = 298893658752. Its totient is φ = 91021680288.

The previous prime is 169838515153. The next prime is 169838515207. The reversal of 169838515161 is 161515838961.

169838515161 is a `hidden beast` number, since 1 + 6 + 98 + 38 + 5 + 1 + 516 + 1 = 666.

169838515161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 169838515161 - 2³ = 169838515153 is a prime.

Its product of digits (1555200) is a multiple of the sum of its prime factors (768).

It is a junction number, because it is equal to n+sod(n) for n = 169838515098 and 169838515107.

It is not an unprimeable number, because it can be changed into a prime (169838515261) 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 107 ways as a sum of consecutive naturals, for example, 366821616 + ... + 366822078.

Almost surely, 2^169838515161 is an apocalyptic number.

It is an amenable number.

169838515161 is a deficient number, since it is larger than the sum of its proper divisors (129055143591).

169838515161 is a wasteful number, since it uses less digits than its factorization.

169838515161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768 (or 619 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 54.

The spelling of 169838515161 in words is "one hundred sixty-nine billion, eight hundred thirty-eight million, five hundred fifteen thousand, one hundred sixty-one".