16825916516 has 12 divisors (see below), whose sum is σ = 29446823532. Its totient is φ = 8412538368.

The previous prime is 16825916483. The next prime is 16825916587. The reversal of 16825916516 is 61561952861.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15148686400 + 1677230116 = 123080^2 + 40954^2 .

It is a super-2 number, since 2×16825916516² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4025 + ... + 183488.

It is an arithmetic number, because the mean of its divisors is an integer number (2453901961).

Almost surely, 2^16825916516 is an apocalyptic number.

It is an amenable number.

16825916516 is a deficient number, since it is larger than the sum of its proper divisors (12620907016).

16825916516 is a wasteful number, since it uses less digits than its factorization.

16825916516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209950 (or 209948 counting only the distinct ones).

The product of its digits is 777600, while the sum is 50.

The spelling of 16825916516 in words is "sixteen billion, eight hundred twenty-five million, nine hundred sixteen thousand, five hundred sixteen".