127165576271161 has 4 divisors (see below), whose sum is σ = 127165599254772. Its totient is φ = 127165553287552.

The previous prime is 127165576271017. The next prime is 127165576271171. The reversal of 127165576271161 is 161172675561721.

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 39457556325625 + 87708019945536 = 6281525^2 + 9365256^2 .

It is a cyclic number.

It is not a de Polignac number, because 127165576271161 - 2¹¹ = 127165576269113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127165576271096 and 127165576271105.

It is not an unprimeable number, because it can be changed into a prime (127165576271171) 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 3 ways as a sum of consecutive naturals, for example, 2426865 + ... + 16131361.

It is an arithmetic number, because the mean of its divisors is an integer number (31791399813693).

Almost surely, 2^{127165576271161} is an apocalyptic number.

It is an amenable number.

127165576271161 is a deficient number, since it is larger than the sum of its proper divisors (22983611).

127165576271161 is an equidigital number, since it uses as much as digits as its factorization.

127165576271161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22983610.

The product of its digits is 7408800, while the sum is 58.

The spelling of 127165576271161 in words is "one hundred twenty-seven trillion, one hundred sixty-five billion, five hundred seventy-six million, two hundred seventy-one thousand, one hundred sixty-one".