16545126453517 has 4 divisors (see below), whose sum is σ = 16608035679840. Its totient is φ = 16482217227196.

The previous prime is 16545126453509. The next prime is 16545126453551. The reversal of 16545126453517 is 71535462154561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16545126453517 - 2³ = 16545126453509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545126454517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31454612767 + ... + 31454613292.

It is an arithmetic number, because the mean of its divisors is an integer number (4152008919960).

Almost surely, 2^{16545126453517} is an apocalyptic number.

It is an amenable number.

16545126453517 is a deficient number, since it is larger than the sum of its proper divisors (62909226323).

16545126453517 is an equidigital number, since it uses as much as digits as its factorization.

16545126453517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62909226322.

The product of its digits is 15120000, while the sum is 55.

The spelling of 16545126453517 in words is "sixteen trillion, five hundred forty-five billion, one hundred twenty-six million, four hundred fifty-three thousand, five hundred seventeen".