16001603144623 has 2 divisors, whose sum is σ = 16001603144624. Its totient is φ = 16001603144622.

The previous prime is 16001603144503. The next prime is 16001603144641. The reversal of 16001603144623 is 32644130610061.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16001603144623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16001603144123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8000801572311 + 8000801572312.

It is an arithmetic number, because the mean of its divisors is an integer number (8000801572312).

Almost surely, 2^{16001603144623} is an apocalyptic number.

16001603144623 is a deficient number, since it is larger than the sum of its proper divisors (1).

16001603144623 is an equidigital number, since it uses as much as digits as its factorization.

16001603144623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 37.

Adding to 16001603144623 its reverse (32644130610061), we get a palindrome (48645733754684).

The spelling of 16001603144623 in words is "sixteen trillion, one billion, six hundred three million, one hundred forty-four thousand, six hundred twenty-three".