16455330171289 has 3 divisors (see below), whose sum is σ = 16455334227807. Its totient is φ = 16455326114772.

The previous prime is 16455330171239. The next prime is 16455330171317. The reversal of 16455330171289 is 98217103355461.

The square root of 16455330171289 is 4056517.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 15488042185225 + 967287986064 = 3935485^2 + 983508^2 .

It is not a de Polignac number, because 16455330171289 - 2²⁹ = 16454793300377 is a prime.

It is a super-2 number, since 2×16455330171289² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16455330171239) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 2028259 + ... + 6084775.

It is an arithmetic number, because the mean of its divisors is an integer number (5485111409269).

It is a 2-persistent number, because it is pandigital, and so is 2⋅16455330171289 = 32910660342578, but 3⋅16455330171289 = 49365990513867 is not.

Almost surely, 2^{16455330171289} is an apocalyptic number.

16455330171289 is the 4056517-th square number.

16455330171289 is the 2028259-th centered octagonal number.

It is an amenable number.

16455330171289 is a deficient number, since it is larger than the sum of its proper divisors (4056518).

16455330171289 is an frugal number, since it uses more digits than its factorization.

16455330171289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8113034 (or 4056517 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 16455330171289 in words is "sixteen trillion, four hundred fifty-five billion, three hundred thirty million, one hundred seventy-one thousand, two hundred eighty-nine".