16020056543 has 2 divisors, whose sum is σ = 16020056544. Its totient is φ = 16020056542.

The previous prime is 16020056513. The next prime is 16020056551. The reversal of 16020056543 is 34565002061.

It is a strong prime.

It is an emirp because it is prime and its reverse (34565002061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16020056543 - 2⁸ = 16020056287 is a prime.

It is a super-2 number, since 2×16020056543² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16020056513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8010028271 + 8010028272.

It is an arithmetic number, because the mean of its divisors is an integer number (8010028272).

Almost surely, 2^16020056543 is an apocalyptic number.

16020056543 is a deficient number, since it is larger than the sum of its proper divisors (1).

16020056543 is an equidigital number, since it uses as much as digits as its factorization.

16020056543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 16020056543 in words is "sixteen billion, twenty million, fifty-six thousand, five hundred forty-three".