120546171161 has 4 divisors (see below), whose sum is σ = 129818953572. Its totient is φ = 111273388752.

The previous prime is 120546171157. The next prime is 120546171211. The reversal of 120546171161 is 161171645021.

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 16188745225 + 104357425936 = 127235^2 + 323044^2 .

It is a cyclic number.

It is not a de Polignac number, because 120546171161 - 2² = 120546171157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120546171101) 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, 4636391186 + ... + 4636391211.

It is an arithmetic number, because the mean of its divisors is an integer number (32454738393).

Almost surely, 2^120546171161 is an apocalyptic number.

It is an amenable number.

120546171161 is a deficient number, since it is larger than the sum of its proper divisors (9272782411).

120546171161 is an equidigital number, since it uses as much as digits as its factorization.

120546171161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9272782410.

The product of its (nonzero) digits is 10080, while the sum is 35.

The spelling of 120546171161 in words is "one hundred twenty billion, five hundred forty-six million, one hundred seventy-one thousand, one hundred sixty-one".