161450580833 has 4 divisors (see below), whose sum is σ = 168470171328. Its totient is φ = 154430990340.

The previous prime is 161450580799. The next prime is 161450580859. The reversal of 161450580833 is 338085054161.

161450580833 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, and also an emirpimes, since its reverse is a distinct semiprime: 338085054161 = 19 ⋅17793950219.

It is a cyclic number.

It is not a de Polignac number, because 161450580833 - 2¹⁶ = 161450515297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161450580433) 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, 3509795213 + ... + 3509795258.

It is an arithmetic number, because the mean of its divisors is an integer number (42117542832).

Almost surely, 2^161450580833 is an apocalyptic number.

It is an amenable number.

161450580833 is a deficient number, since it is larger than the sum of its proper divisors (7019590495).

161450580833 is an equidigital number, since it uses as much as digits as its factorization.

161450580833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7019590494.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 161450580833 in words is "one hundred sixty-one billion, four hundred fifty million, five hundred eighty thousand, eight hundred thirty-three".