16516535263 has 2 divisors, whose sum is σ = 16516535264. Its totient is φ = 16516535262.

The previous prime is 16516535227. The next prime is 16516535333. The reversal of 16516535263 is 36253561561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16516535263 - 2²¹ = 16514438111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16516533263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8258267631 + 8258267632.

It is an arithmetic number, because the mean of its divisors is an integer number (8258267632).

Almost surely, 2^16516535263 is an apocalyptic number.

16516535263 is a deficient number, since it is larger than the sum of its proper divisors (1).

16516535263 is an equidigital number, since it uses as much as digits as its factorization.

16516535263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486000, while the sum is 43.

The spelling of 16516535263 in words is "sixteen billion, five hundred sixteen million, five hundred thirty-five thousand, two hundred sixty-three".