16500640116 has 12 divisors (see below), whose sum is σ = 38501493632. Its totient is φ = 5500213368.

The previous prime is 16500640069. The next prime is 16500640133. The reversal of 16500640116 is 61104600561.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×16500640116² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 687526660 + ... + 687526683.

Almost surely, 2^16500640116 is an apocalyptic number.

It is an amenable number.

16500640116 is an abundant number, since it is smaller than the sum of its proper divisors (22000853516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16500640116 is a wasteful number, since it uses less digits than its factorization.

16500640116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375053350 (or 1375053348 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 16500640116 in words is "sixteen billion, five hundred million, six hundred forty thousand, one hundred sixteen".