6648710911 has 4 divisors (see below), whose sum is σ = 6649889400. Its totient is φ = 6647532424.

The previous prime is 6648710903. The next prime is 6648710923. The reversal of 6648710911 is 1190178466.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6648710911 - 2³ = 6648710903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6648740911) by changing a digit.

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, 580741 + ... + 592078.

It is an arithmetic number, because the mean of its divisors is an integer number (1662472350).

Almost surely, 2^6648710911 is an apocalyptic number.

6648710911 is a deficient number, since it is larger than the sum of its proper divisors (1178489).

6648710911 is a wasteful number, since it uses less digits than its factorization.

6648710911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178488.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 6648710911 is about 81539.6278566440. The cubic root of 6648710911 is about 1880.3808371941.

The spelling of 6648710911 in words is "six billion, six hundred forty-eight million, seven hundred ten thousand, nine hundred eleven".