161101516671105 has 64 divisors (see below), whose sum is σ = 268412564706048. Its totient is φ = 82435875102720.

The previous prime is 161101516671103. The next prime is 161101516671127. The reversal of 161101516671105 is 501176615101161.

It is not a de Polignac number, because 161101516671105 - 2¹ = 161101516671103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161101516671103) 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 63 ways as a sum of consecutive naturals, for example, 190850182 + ... + 191692448.

It is an arithmetic number, because the mean of its divisors is an integer number (4193946323532).

Almost surely, 2^{161101516671105} is an apocalyptic number.

161101516671105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

161101516671105 is a deficient number, since it is larger than the sum of its proper divisors (107311048034943).

161101516671105 is a wasteful number, since it uses less digits than its factorization.

161101516671105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847106.

The product of its (nonzero) digits is 37800, while the sum is 42.

The spelling of 161101516671105 in words is "one hundred sixty-one trillion, one hundred one billion, five hundred sixteen million, six hundred seventy-one thousand, one hundred five".