16542788040523 has 2 divisors, whose sum is σ = 16542788040524. Its totient is φ = 16542788040522.

The previous prime is 16542788040521. The next prime is 16542788040557. The reversal of 16542788040523 is 32504088724561.

It is a happy number.

16542788040523 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 is a cyclic number.

It is not a de Polignac number, because 16542788040523 - 2¹ = 16542788040521 is a prime.

It is a super-2 number, since 2×16542788040523² (a number of 27 digits) contains 22 as substring.

Together with 16542788040521, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16542788040521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8271394020261 + 8271394020262.

It is an arithmetic number, because the mean of its divisors is an integer number (8271394020262).

Almost surely, 2^{16542788040523} is an apocalyptic number.

16542788040523 is a deficient number, since it is larger than the sum of its proper divisors (1).

16542788040523 is an equidigital number, since it uses as much as digits as its factorization.

16542788040523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12902400, while the sum is 55.

The spelling of 16542788040523 in words is "sixteen trillion, five hundred forty-two billion, seven hundred eighty-eight million, forty thousand, five hundred twenty-three".