6505658266 has 8 divisors (see below), whose sum is σ = 9764656704. Its totient is φ = 3250772700.

The previous prime is 6505658251. The next prime is 6505658317. The reversal of 6505658266 is 6628565056.

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 1024260 + ... + 1030591.

It is an arithmetic number, because the mean of its divisors is an integer number (1220582088).

Almost surely, 2^6505658266 is an apocalyptic number.

6505658266 is a deficient number, since it is larger than the sum of its proper divisors (3258998438).

6505658266 is a wasteful number, since it uses less digits than its factorization.

6505658266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056436.

The product of its (nonzero) digits is 2592000, while the sum is 49.

The square root of 6505658266 is about 80657.6609256678. The cubic root of 6505658266 is about 1866.7969480428.

The spelling of 6505658266 in words is "six billion, five hundred five million, six hundred fifty-eight thousand, two hundred sixty-six".