6505880116 has 6 divisors (see below), whose sum is σ = 11385290210. Its totient is φ = 3252940056.

The previous prime is 6505880099. The next prime is 6505880159. The reversal of 6505880116 is 6110885056.

It can be written as a sum of positive squares in only one way, i.e., 6390403600 + 115476516 = 79940^2 + 10746^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 813235011 + ... + 813235018.

Almost surely, 2^6505880116 is an apocalyptic number.

It is an amenable number.

6505880116 is a deficient number, since it is larger than the sum of its proper divisors (4879410094).

6505880116 is a wasteful number, since it uses less digits than its factorization.

6505880116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626470033 (or 1626470031 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 6505880116 is about 80659.0361707850. The cubic root of 6505880116 is about 1866.8181677348.

The spelling of 6505880116 in words is "six billion, five hundred five million, eight hundred eighty thousand, one hundred sixteen".