161385321341 has 4 divisors (see below), whose sum is σ = 161433542592. Its totient is φ = 161337100092.

The previous prime is 161385321337. The next prime is 161385321403. The reversal of 161385321341 is 143123583161.

It is a happy number.

161385321341 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 161385321341 - 2² = 161385321337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161385321295 and 161385321304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161385321541) 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, 24105605 + ... + 24112298.

It is an arithmetic number, because the mean of its divisors is an integer number (40358385648).

Almost surely, 2^161385321341 is an apocalyptic number.

It is an amenable number.

161385321341 is a deficient number, since it is larger than the sum of its proper divisors (48221251).

161385321341 is an equidigital number, since it uses as much as digits as its factorization.

161385321341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48221250.

The product of its digits is 51840, while the sum is 38.

The spelling of 161385321341 in words is "one hundred sixty-one billion, three hundred eighty-five million, three hundred twenty-one thousand, three hundred forty-one".