16452771240503 has 4 divisors (see below), whose sum is σ = 17718369028248. Its totient is φ = 15187173452760.

The previous prime is 16452771240467. The next prime is 16452771240509. The reversal of 16452771240503 is 30504217725461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16452771240503 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 (16452771240509) 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, 632798893853 + ... + 632798893878.

It is an arithmetic number, because the mean of its divisors is an integer number (4429592257062).

Almost surely, 2^{16452771240503} is an apocalyptic number.

16452771240503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16452771240503 is a deficient number, since it is larger than the sum of its proper divisors (1265597787745).

16452771240503 is a wasteful number, since it uses less digits than its factorization.

16452771240503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265597787744.

The product of its (nonzero) digits is 1411200, while the sum is 47.

Adding to 16452771240503 its reverse (30504217725461), we get a palindrome (46956988965964).

The spelling of 16452771240503 in words is "sixteen trillion, four hundred fifty-two billion, seven hundred seventy-one million, two hundred forty thousand, five hundred three".