165161110050105 has 16 divisors (see below), whose sum is σ = 284585297317440. Its totient is φ = 81310084947648.

The previous prime is 165161110050071. The next prime is 165161110050109. The reversal of 165161110050105 is 501050011161561.

It is not a de Polignac number, because 165161110050105 - 2⁷ = 165161110049977 is a prime.

It is a super-2 number, since 2×165161110050105² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165161110050109) 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 15 ways as a sum of consecutive naturals, for example, 423490025575 + ... + 423490025964.

It is an arithmetic number, because the mean of its divisors is an integer number (17786581082340).

Almost surely, 2^{165161110050105} is an apocalyptic number.

165161110050105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165161110050105 is a deficient number, since it is larger than the sum of its proper divisors (119424187267335).

165161110050105 is a wasteful number, since it uses less digits than its factorization.

165161110050105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846980051560.

The product of its (nonzero) digits is 4500, while the sum is 33.

The spelling of 165161110050105 in words is "one hundred sixty-five trillion, one hundred sixty-one billion, one hundred ten million, fifty thousand, one hundred five".