161031327177 has 8 divisors (see below), whose sum is σ = 245381070016. Its totient is φ = 92017901232.

The previous prime is 161031327167. The next prime is 161031327199. The reversal of 161031327177 is 771723130161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161031327177 - 2¹⁰ = 161031326153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161031327137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3834079198 + ... + 3834079239.

It is an arithmetic number, because the mean of its divisors is an integer number (30672633752).

Almost surely, 2^161031327177 is an apocalyptic number.

It is an amenable number.

161031327177 is a deficient number, since it is larger than the sum of its proper divisors (84349742839).

161031327177 is an equidigital number, since it uses as much as digits as its factorization.

161031327177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7668158447.

The product of its (nonzero) digits is 37044, while the sum is 39.

The spelling of 161031327177 in words is "one hundred sixty-one billion, thirty-one million, three hundred twenty-seven thousand, one hundred seventy-seven".