16515050647 has 2 divisors, whose sum is σ = 16515050648. Its totient is φ = 16515050646.

The previous prime is 16515050611. The next prime is 16515050689. The reversal of 16515050647 is 74605051561.

It is a weak prime.

It is an emirp because it is prime and its reverse (74605051561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16515050647 - 2¹⁵ = 16515017879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16515050947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8257525323 + 8257525324.

It is an arithmetic number, because the mean of its divisors is an integer number (8257525324).

Almost surely, 2^16515050647 is an apocalyptic number.

16515050647 is a deficient number, since it is larger than the sum of its proper divisors (1).

16515050647 is an equidigital number, since it uses as much as digits as its factorization.

16515050647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 16515050647 in words is "sixteen billion, five hundred fifteen million, fifty thousand, six hundred forty-seven".