16500112549 has 2 divisors, whose sum is σ = 16500112550. Its totient is φ = 16500112548.

The previous prime is 16500112493. The next prime is 16500112561. The reversal of 16500112549 is 94521100561.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15682552900 + 817559649 = 125230^2 + 28593^2 .

It is an emirp because it is prime and its reverse (94521100561) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16500112549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16500112949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8250056274 + 8250056275.

It is an arithmetic number, because the mean of its divisors is an integer number (8250056275).

Almost surely, 2^16500112549 is an apocalyptic number.

It is an amenable number.

16500112549 is a deficient number, since it is larger than the sum of its proper divisors (1).

16500112549 is an equidigital number, since it uses as much as digits as its factorization.

16500112549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 34.

The spelling of 16500112549 in words is "sixteen billion, five hundred million, one hundred twelve thousand, five hundred forty-nine".