19328246161 has 4 divisors (see below), whose sum is σ = 22089424192. Its totient is φ = 16567068132.

The previous prime is 19328246123. The next prime is 19328246173. The reversal of 19328246161 is 16164282391.

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 19328246161 - 2¹³ = 19328237969 is a prime.

It is a super-2 number, since 2×19328246161² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19328240161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1380589005 + ... + 1380589018.

It is an arithmetic number, because the mean of its divisors is an integer number (5522356048).

Almost surely, 2^19328246161 is an apocalyptic number.

It is an amenable number.

19328246161 is a deficient number, since it is larger than the sum of its proper divisors (2761178031).

19328246161 is an equidigital number, since it uses as much as digits as its factorization.

19328246161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761178030.

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

The spelling of 19328246161 in words is "nineteen billion, three hundred twenty-eight million, two hundred forty-six thousand, one hundred sixty-one".