161205330053465 has 8 divisors (see below), whose sum is σ = 193446597999168. Its totient is φ = 128964129419440.

The previous prime is 161205330053431. The next prime is 161205330053473. The reversal of 161205330053465 is 564350033502161.

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

It is not a de Polignac number, because 161205330053465 - 2³⁰ = 161204256311641 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11399951 + ... + 21268980.

It is an arithmetic number, because the mean of its divisors is an integer number (24180824749896).

Almost surely, 2^{161205330053465} is an apocalyptic number.

It is an amenable number.

161205330053465 is a deficient number, since it is larger than the sum of its proper divisors (32241267945703).

161205330053465 is an equidigital number, since it uses as much as digits as its factorization.

161205330053465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33655839.

The product of its (nonzero) digits is 972000, while the sum is 44.

The spelling of 161205330053465 in words is "one hundred sixty-one trillion, two hundred five billion, three hundred thirty million, fifty-three thousand, four hundred sixty-five".