16545122332553 has 4 divisors (see below), whose sum is σ = 16545154296528. Its totient is φ = 16545090368580.

The previous prime is 16545122332549. The next prime is 16545122332603. The reversal of 16545122332553 is 35523322154561.

It is a happy number.

16545122332553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16545122332553 - 2² = 16545122332549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16545122332498 and 16545122332507.

It is not an unprimeable number, because it can be changed into a prime (16545122332513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15192563 + ... + 16245128.

It is an arithmetic number, because the mean of its divisors is an integer number (4136288574132).

Almost surely, 2^{16545122332553} is an apocalyptic number.

It is an amenable number.

16545122332553 is a deficient number, since it is larger than the sum of its proper divisors (31963975).

16545122332553 is an equidigital number, since it uses as much as digits as its factorization.

16545122332553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31963974.

The product of its digits is 3240000, while the sum is 47.

The spelling of 16545122332553 in words is "sixteen trillion, five hundred forty-five billion, one hundred twenty-two million, three hundred thirty-two thousand, five hundred fifty-three".