16516515513 has 16 divisors (see below), whose sum is σ = 22795776000. Its totient is φ = 10626113040.

The previous prime is 16516515497. The next prime is 16516515517. The reversal of 16516515513 is 31551561561.

It is not a de Polignac number, because 16516515513 - 2⁴ = 16516515497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16516515517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213963 + ... + 280736.

It is an arithmetic number, because the mean of its divisors is an integer number (1424736000).

Almost surely, 2^16516515513 is an apocalyptic number.

It is an amenable number.

16516515513 is a deficient number, since it is larger than the sum of its proper divisors (6279260487).

16516515513 is a wasteful number, since it uses less digits than its factorization.

16516515513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495092.

The product of its digits is 67500, while the sum is 39.

The spelling of 16516515513 in words is "sixteen billion, five hundred sixteen million, five hundred fifteen thousand, five hundred thirteen".