16503631344041 has 4 divisors (see below), whose sum is σ = 16503641964432. Its totient is φ = 16503620723652.

The previous prime is 16503631343921. The next prime is 16503631344043. The reversal of 16503631344041 is 14044313630561.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16503631344041 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 16503631344041.

It is not an unprimeable number, because it can be changed into a prime (16503631344043) 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, 2474495 + ... + 6255428.

It is an arithmetic number, because the mean of its divisors is an integer number (4125910491108).

Almost surely, 2^{16503631344041} is an apocalyptic number.

It is an amenable number.

16503631344041 is a deficient number, since it is larger than the sum of its proper divisors (10620391).

16503631344041 is an equidigital number, since it uses as much as digits as its factorization.

16503631344041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10620390.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 16503631344041 in words is "sixteen trillion, five hundred three billion, six hundred thirty-one million, three hundred forty-four thousand, forty-one".