16517347899 has 32 divisors (see below), whose sum is σ = 23941478400. Its totient is φ = 10068744960.

The previous prime is 16517347879. The next prime is 16517347907. The reversal of 16517347899 is 99874371561.

It is not a de Polignac number, because 16517347899 - 2¹⁵ = 16517315131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16517347879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2593479 + ... + 2599839.

It is an arithmetic number, because the mean of its divisors is an integer number (748171200).

Almost surely, 2^16517347899 is an apocalyptic number.

16517347899 is a deficient number, since it is larger than the sum of its proper divisors (7424130501).

16517347899 is a wasteful number, since it uses less digits than its factorization.

16517347899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6995.

The product of its digits is 11430720, while the sum is 60.

The spelling of 16517347899 in words is "sixteen billion, five hundred seventeen million, three hundred forty-seven thousand, eight hundred ninety-nine".