16001603144573 has 4 divisors (see below), whose sum is σ = 16697325020448. Its totient is φ = 15305881268700.

The previous prime is 16001603144503. The next prime is 16001603144623. The reversal of 16001603144573 is 37544130610061.

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 a de Polignac number, because none of the positive numbers 2^k-16001603144573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16001603144573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16001603144503) 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, 347860937903 + ... + 347860937948.

It is an arithmetic number, because the mean of its divisors is an integer number (4174331255112).

Almost surely, 2^{16001603144573} is an apocalyptic number.

It is an amenable number.

16001603144573 is a deficient number, since it is larger than the sum of its proper divisors (695721875875).

16001603144573 is an equidigital number, since it uses as much as digits as its factorization.

16001603144573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695721875874.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 16001603144573 in words is "sixteen trillion, one billion, six hundred three million, one hundred forty-four thousand, five hundred seventy-three".