16442736257271 has 4 divisors (see below), whose sum is σ = 21923648343032. Its totient is φ = 10961824171512.

The previous prime is 16442736257219. The next prime is 16442736257281. The reversal of 16442736257271 is 17275263724461.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16442736257271 - 2¹⁷ = 16442736126199 is a prime.

It is a super-3 number, since 3×16442736257271³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442736257201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2740456042876 + ... + 2740456042881.

It is an arithmetic number, because the mean of its divisors is an integer number (5480912085758).

Almost surely, 2^{16442736257271} is an apocalyptic number.

16442736257271 is a deficient number, since it is larger than the sum of its proper divisors (5480912085761).

16442736257271 is an equidigital number, since it uses as much as digits as its factorization.

16442736257271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5480912085760.

The product of its digits is 23708160, while the sum is 57.

The spelling of 16442736257271 in words is "sixteen trillion, four hundred forty-two billion, seven hundred thirty-six million, two hundred fifty-seven thousand, two hundred seventy-one".