16173437161 has 16 divisors (see below), whose sum is σ = 18555187968. Its totient is φ = 13809600000.

The previous prime is 16173437153. The next prime is 16173437167.

It is a happy number.

16173437161 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 16173437161 - 2³ = 16173437153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16173437167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2306661 + ... + 2313661.

It is an arithmetic number, because the mean of its divisors is an integer number (1159699248).

Almost surely, 2^16173437161 is an apocalyptic number.

It is an amenable number.

16173437161 is a deficient number, since it is larger than the sum of its proper divisors (2381750807).

16173437161 is an equidigital number, since it uses as much as digits as its factorization.

16173437161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8232.

The product of its digits is 63504, while the sum is 40.

The spelling of 16173437161 in words is "sixteen billion, one hundred seventy-three million, four hundred thirty-seven thousand, one hundred sixty-one".