16105361161 has 4 divisors (see below), whose sum is σ = 16106194324. Its totient is φ = 16104528000.

The previous prime is 16105361159. The next prime is 16105361189. The reversal of 16105361161 is 16116350161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1193287936 + 14912073225 = 34544^2 + 122115^2 .

It is a cyclic number.

It is not a de Polignac number, because 16105361161 - 2¹ = 16105361159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16105361101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386880 + ... + 426481.

It is an arithmetic number, because the mean of its divisors is an integer number (4026548581).

Almost surely, 2^16105361161 is an apocalyptic number.

It is an amenable number.

16105361161 is a deficient number, since it is larger than the sum of its proper divisors (833163).

16105361161 is an equidigital number, since it uses as much as digits as its factorization.

16105361161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833162.

The product of its (nonzero) digits is 3240, while the sum is 31.

The spelling of 16105361161 in words is "sixteen billion, one hundred five million, three hundred sixty-one thousand, one hundred sixty-one".