161368606141 has 4 divisors (see below), whose sum is σ = 161717134912. Its totient is φ = 161020077372.

The previous prime is 161368606121. The next prime is 161368606163. The reversal of 161368606141 is 141606863161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 141606863161 = 42703 ⋅3316087.

It is a cyclic number.

It is not a de Polignac number, because 161368606141 - 2⁵ = 161368606109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161368606111) 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, 174263691 + ... + 174264616.

It is an arithmetic number, because the mean of its divisors is an integer number (40429283728).

Almost surely, 2^161368606141 is an apocalyptic number.

It is an amenable number.

161368606141 is a deficient number, since it is larger than the sum of its proper divisors (348528771).

161368606141 is an equidigital number, since it uses as much as digits as its factorization.

161368606141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348528770.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 161368606141 in words is "one hundred sixty-one billion, three hundred sixty-eight million, six hundred six thousand, one hundred forty-one".