16545113413 has 4 divisors (see below), whose sum is σ = 16545424588. Its totient is φ = 16544802240.

The previous prime is 16545113401. The next prime is 16545113419. The reversal of 16545113413 is 31431154561.

16545113413 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.

It can be written as a sum of positive squares in 2 ways, for example, as 6522500644 + 10022612769 = 80762^2 + 100113^2 .

It is a cyclic number.

It is not a de Polignac number, because 16545113413 - 2⁵ = 16545113381 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 (16545113419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53508 + ... + 189613.

It is an arithmetic number, because the mean of its divisors is an integer number (4136356147).

Almost surely, 2^16545113413 is an apocalyptic number.

It is an amenable number.

16545113413 is a deficient number, since it is larger than the sum of its proper divisors (311175).

16545113413 is an equidigital number, since it uses as much as digits as its factorization.

16545113413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311174.

The product of its digits is 21600, while the sum is 34.

Adding to 16545113413 its reverse (31431154561), we get a palindrome (47976267974).

The spelling of 16545113413 in words is "sixteen billion, five hundred forty-five million, one hundred thirteen thousand, four hundred thirteen".