161100016666105 has 16 divisors (see below), whose sum is σ = 211265208028800. Its totient is φ = 116957736952960.

The previous prime is 161100016666067. The next prime is 161100016666117. The reversal of 161100016666105 is 501666610001161.

It is not a de Polignac number, because 161100016666105 - 2¹³ = 161100016657913 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2573862565 + ... + 2573925154.

It is an arithmetic number, because the mean of its divisors is an integer number (13204075501800).

Almost surely, 2^{161100016666105} is an apocalyptic number.

It is an amenable number.

161100016666105 is a deficient number, since it is larger than the sum of its proper divisors (50165191362695).

161100016666105 is a wasteful number, since it uses less digits than its factorization.

161100016666105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147788304.

The product of its (nonzero) digits is 38880, while the sum is 40.

Adding to 161100016666105 its reverse (501666610001161), we get a palindrome (662766626667266).

The spelling of 161100016666105 in words is "one hundred sixty-one trillion, one hundred billion, sixteen million, six hundred sixty-six thousand, one hundred five".