1616360216543 has 2 divisors, whose sum is σ = 1616360216544. Its totient is φ = 1616360216542.

The previous prime is 1616360216533. The next prime is 1616360216579. The reversal of 1616360216543 is 3456120636161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1616360216543 - 2¹⁸ = 1616359954399 is a prime.

It is a super-4 number, since 4×1616360216543⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1616360216494 and 1616360216503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1616360216503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808180108271 + 808180108272.

It is an arithmetic number, because the mean of its divisors is an integer number (808180108272).

Almost surely, 2^{1616360216543} is an apocalyptic number.

1616360216543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616360216543 is an equidigital number, since it uses as much as digits as its factorization.

1616360216543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 1616360216543 in words is "one trillion, six hundred sixteen billion, three hundred sixty million, two hundred sixteen thousand, five hundred forty-three".