16565145542293 has 2 divisors, whose sum is σ = 16565145542294. Its totient is φ = 16565145542292.

The previous prime is 16565145542227. The next prime is 16565145542299. The reversal of 16565145542293 is 39224554156561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16067735537764 + 497410004529 = 4008458^2 + 705273^2 .

It is a cyclic number.

It is not a de Polignac number, because 16565145542293 - 2²¹ = 16565143445141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16565145542299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8282572771146 + 8282572771147.

It is an arithmetic number, because the mean of its divisors is an integer number (8282572771147).

Almost surely, 2^{16565145542293} is an apocalyptic number.

It is an amenable number.

16565145542293 is a deficient number, since it is larger than the sum of its proper divisors (1).

16565145542293 is an equidigital number, since it uses as much as digits as its factorization.

16565145542293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880000, while the sum is 58.

The spelling of 16565145542293 in words is "sixteen trillion, five hundred sixty-five billion, one hundred forty-five million, five hundred forty-two thousand, two hundred ninety-three".