6648216486 has 32 divisors (see below), whose sum is σ = 14082374880. Its totient is φ = 2085152256.

The previous prime is 6648216457. The next prime is 6648216511. The reversal of 6648216486 is 6846128466.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

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 in 15 ways as a sum of consecutive naturals, for example, 535380 + ... + 547656.

It is an arithmetic number, because the mean of its divisors is an integer number (440074215).

Almost surely, 2^6648216486 is an apocalyptic number.

6648216486 is an abundant number, since it is smaller than the sum of its proper divisors (7434158394).

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

6648216486 is a wasteful number, since it uses less digits than its factorization.

6648216486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17608.

The product of its digits is 2654208, while the sum is 51.

The square root of 6648216486 is about 81536.5959922292. The cubic root of 6648216486 is about 1880.3342251338.

The spelling of 6648216486 in words is "six billion, six hundred forty-eight million, two hundred sixteen thousand, four hundred eighty-six".