6648428266 has 8 divisors (see below), whose sum is σ = 10002772224. Its totient is φ = 3314170860.

The previous prime is 6648428257. The next prime is 6648428317. The reversal of 6648428266 is 6628248466.

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

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, 5020810 + ... + 5022133.

It is an arithmetic number, because the mean of its divisors is an integer number (1250346528).

Almost surely, 2^6648428266 is an apocalyptic number.

6648428266 is a deficient number, since it is larger than the sum of its proper divisors (3354343958).

6648428266 is a wasteful number, since it uses less digits than its factorization.

6648428266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10043276.

The product of its digits is 5308416, while the sum is 52.

The square root of 6648428266 is about 81537.8946625433. The cubic root of 6648428266 is about 1880.3541910376.

The spelling of 6648428266 in words is "six billion, six hundred forty-eight million, four hundred twenty-eight thousand, two hundred sixty-six".