16541764191287 has 2 divisors, whose sum is σ = 16541764191288. Its totient is φ = 16541764191286.

The previous prime is 16541764191269. The next prime is 16541764191343. The reversal of 16541764191287 is 78219146714561.

It is a weak prime.

It is an emirp because it is prime and its reverse (78219146714561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16541764191287 - 2³⁶ = 16473044714551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16541764191217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8270882095643 + 8270882095644.

It is an arithmetic number, because the mean of its divisors is an integer number (8270882095644).

Almost surely, 2^{16541764191287} is an apocalyptic number.

16541764191287 is a deficient number, since it is larger than the sum of its proper divisors (1).

16541764191287 is an equidigital number, since it uses as much as digits as its factorization.

16541764191287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20321280, while the sum is 62.

The spelling of 16541764191287 in words is "sixteen trillion, five hundred forty-one billion, seven hundred sixty-four million, one hundred ninety-one thousand, two hundred eighty-seven".