6509818116 has 36 divisors (see below), whose sum is σ = 16484652912. Its totient is φ = 2166078384.

The previous prime is 6509818097. The next prime is 6509818127. The reversal of 6509818116 is 6118189056.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140326 + ... + 180861.

Almost surely, 2^6509818116 is an apocalyptic number.

It is an amenable number.

6509818116 is an abundant number, since it is smaller than the sum of its proper divisors (9974834796).

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

6509818116 is a wasteful number, since it uses less digits than its factorization.

6509818116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321760 (or 321755 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 6509818116 is about 80683.4438779109. The cubic root of 6509818116 is about 1867.1947525587.

The spelling of 6509818116 in words is "six billion, five hundred nine million, eight hundred eighteen thousand, one hundred sixteen".