16545723552523 has 24 divisors (see below), whose sum is σ = 18233333028288. Its totient is φ = 15002947344000.

The previous prime is 16545723552517. The next prime is 16545723552593. The reversal of 16545723552523 is 32525532754561.

It is not a de Polignac number, because 16545723552523 - 2¹³ = 16545723544331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16545723552503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 290895615 + ... + 290952487.

It is an arithmetic number, because the mean of its divisors is an integer number (759722209512).

Almost surely, 2^{16545723552523} is an apocalyptic number.

16545723552523 is a deficient number, since it is larger than the sum of its proper divisors (1687609475765).

16545723552523 is a wasteful number, since it uses less digits than its factorization.

16545723552523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63027 (or 63016 counting only the distinct ones).

The product of its digits is 37800000, while the sum is 55.

The spelling of 16545723552523 in words is "sixteen trillion, five hundred forty-five billion, seven hundred twenty-three million, five hundred fifty-two thousand, five hundred twenty-three".