16245015506503 has 8 divisors (see below), whose sum is σ = 18566409882272. Its totient is φ = 13923790599456.

The previous prime is 16245015506417. The next prime is 16245015506521. The reversal of 16245015506503 is 30560551054261.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16245015506503 - 2⁹ = 16245015505991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16245015506503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16245015506543) 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 7 ways as a sum of consecutive naturals, for example, 42161700 + ... + 42545257.

It is an arithmetic number, because the mean of its divisors is an integer number (2320801235284).

Almost surely, 2^{16245015506503} is an apocalyptic number.

16245015506503 is a deficient number, since it is larger than the sum of its proper divisors (2321394375769).

16245015506503 is an equidigital number, since it uses as much as digits as its factorization.

16245015506503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84734361.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 16245015506503 in words is "sixteen trillion, two hundred forty-five billion, fifteen million, five hundred six thousand, five hundred three".