16513436516 has 12 divisors (see below), whose sum is σ = 29008396032. Its totient is φ = 8225323368.

The previous prime is 16513436491. The next prime is 16513436549. The reversal of 16513436516 is 61563431561.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7847540 + ... + 7849643.

It is an arithmetic number, because the mean of its divisors is an integer number (2417366336).

Almost surely, 2^16513436516 is an apocalyptic number.

It is an amenable number.

16513436516 is a deficient number, since it is larger than the sum of its proper divisors (12494959516).

16513436516 is a wasteful number, since it uses less digits than its factorization.

16513436516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15697450 (or 15697448 counting only the distinct ones).

The product of its digits is 194400, while the sum is 41.

The spelling of 16513436516 in words is "sixteen billion, five hundred thirteen million, four hundred thirty-six thousand, five hundred sixteen".