161106212106111 has 32 divisors (see below), whose sum is σ = 224305395535872. Its totient is φ = 102662160606720.

The previous prime is 161106212106079. The next prime is 161106212106193. The reversal of 161106212106111 is 111601212601161.

It is not a de Polignac number, because 161106212106111 - 2⁵ = 161106212106079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161106212102111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2423965266 + ... + 2424031728.

It is an arithmetic number, because the mean of its divisors is an integer number (7009543610496).

Almost surely, 2^{161106212106111} is an apocalyptic number.

161106212106111 is a deficient number, since it is larger than the sum of its proper divisors (63199183429761).

161106212106111 is a wasteful number, since it uses less digits than its factorization.

161106212106111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90663.

The product of its (nonzero) digits is 864, while the sum is 30.

Adding to 161106212106111 its reverse (111601212601161), we get a palindrome (272707424707272).

The spelling of 161106212106111 in words is "one hundred sixty-one trillion, one hundred six billion, two hundred twelve million, one hundred six thousand, one hundred eleven".