16516004197 has 16 divisors (see below), whose sum is σ = 21486661632. Its totient is φ = 12310063920.

The previous prime is 16516004189. The next prime is 16516004227. The reversal of 16516004197 is 79140061561.

It is not a de Polignac number, because 16516004197 - 2³ = 16516004189 is a prime.

It is a super-2 number, since 2×16516004197² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16516004147) 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 15 ways as a sum of consecutive naturals, for example, 4661133 + ... + 4664674.

It is an arithmetic number, because the mean of its divisors is an integer number (1342916352).

Almost surely, 2^16516004197 is an apocalyptic number.

It is an amenable number.

16516004197 is a deficient number, since it is larger than the sum of its proper divisors (4970657435).

16516004197 is a wasteful number, since it uses less digits than its factorization.

16516004197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9325848.

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 16516004197 in words is "sixteen billion, five hundred sixteen million, four thousand, one hundred ninety-seven".