16517315903 has 12 divisors (see below), whose sum is σ = 18189027864. Its totient is φ = 14987926800.

The previous prime is 16517315897. The next prime is 16517315939. The reversal of 16517315903 is 30951371561.

It is not a de Polignac number, because 16517315903 - 2¹² = 16517311807 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 (16517315993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60701 + ... + 191622.

It is an arithmetic number, because the mean of its divisors is an integer number (1515752322).

Almost surely, 2^16517315903 is an apocalyptic number.

16517315903 is a deficient number, since it is larger than the sum of its proper divisors (1671711961).

16517315903 is a wasteful number, since it uses less digits than its factorization.

16517315903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252886 (or 252875 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 41.

The spelling of 16517315903 in words is "sixteen billion, five hundred seventeen million, three hundred fifteen thousand, nine hundred three".