161050071612121 has 8 divisors (see below), whose sum is σ = 169782367878144. Its totient is φ = 152538846137760.

The previous prime is 161050071612113. The next prime is 161050071612137. The reversal of 161050071612121 is 121216170050161.

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

It is a cyclic number.

It is not a de Polignac number, because 161050071612121 - 2³ = 161050071612113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161050071112121) 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, 55267696420 + ... + 55267699333.

It is an arithmetic number, because the mean of its divisors is an integer number (21222795984768).

Almost surely, 2^{161050071612121} is an apocalyptic number.

It is an amenable number.

161050071612121 is a deficient number, since it is larger than the sum of its proper divisors (8732296266023).

161050071612121 is a wasteful number, since it uses less digits than its factorization.

161050071612121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110535395831.

The product of its (nonzero) digits is 5040, while the sum is 34.

The spelling of 161050071612121 in words is "one hundred sixty-one trillion, fifty billion, seventy-one million, six hundred twelve thousand, one hundred twenty-one".