16143663305537 has 2 divisors, whose sum is σ = 16143663305538. Its totient is φ = 16143663305536.

The previous prime is 16143663305533. The next prime is 16143663305569. The reversal of 16143663305537 is 73550336634161.

16143663305537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14353823358736 + 1789839946801 = 3788644^2 + 1337849^2 .

It is an emirp because it is prime and its reverse (73550336634161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16143663305537 - 2² = 16143663305533 is a prime.

It is not a weakly prime, because it can be changed into another prime (16143663305533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8071831652768 + 8071831652769.

It is an arithmetic number, because the mean of its divisors is an integer number (8071831652769).

Almost surely, 2^{16143663305537} is an apocalyptic number.

It is an amenable number.

16143663305537 is a deficient number, since it is larger than the sum of its proper divisors (1).

16143663305537 is an equidigital number, since it uses as much as digits as its factorization.

16143663305537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12247200, while the sum is 53.

Adding to 16143663305537 its reverse (73550336634161), we get a palindrome (89693999939698).

The spelling of 16143663305537 in words is "sixteen trillion, one hundred forty-three billion, six hundred sixty-three million, three hundred five thousand, five hundred thirty-seven".