16271705408531 has 2 divisors, whose sum is σ = 16271705408532. Its totient is φ = 16271705408530.

The previous prime is 16271705408513. The next prime is 16271705408533. The reversal of 16271705408531 is 13580450717261.

It is a happy number.

Together with previous prime (16271705408513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16271705408531 - 2⁶ = 16271705408467 is a prime.

It is a super-2 number, since 2×16271705408531² (a number of 27 digits) contains 22 as substring.

Together with 16271705408533, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16271705408531.

It is not a weakly prime, because it can be changed into another prime (16271705408533) 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 as a sum of consecutive naturals, namely, 8135852704265 + 8135852704266.

It is an arithmetic number, because the mean of its divisors is an integer number (8135852704266).

Almost surely, 2^{16271705408531} is an apocalyptic number.

16271705408531 is a deficient number, since it is larger than the sum of its proper divisors (1).

16271705408531 is an equidigital number, since it uses as much as digits as its factorization.

16271705408531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1411200, while the sum is 50.

The spelling of 16271705408531 in words is "sixteen trillion, two hundred seventy-one billion, seven hundred five million, four hundred eight thousand, five hundred thirty-one".