120660173073161 has 4 divisors (see below), whose sum is σ = 120720593792772. Its totient is φ = 120599752353552.

The previous prime is 120660173073133. The next prime is 120660173073179. The reversal of 120660173073161 is 161370371066021.

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 7286657783161 + 113373515290000 = 2699381^2 + 10647700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120660173073161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120660173073131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30210356810 + ... + 30210360803.

It is an arithmetic number, because the mean of its divisors is an integer number (30180148448193).

Almost surely, 2^{120660173073161} is an apocalyptic number.

It is an amenable number.

120660173073161 is a deficient number, since it is larger than the sum of its proper divisors (60420719611).

120660173073161 is an equidigital number, since it uses as much as digits as its factorization.

120660173073161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60420719610.

The product of its (nonzero) digits is 190512, while the sum is 44.

The spelling of 120660173073161 in words is "one hundred twenty trillion, six hundred sixty billion, one hundred seventy-three million, seventy-three thousand, one hundred sixty-one".