6648345368 has 32 divisors (see below), whose sum is σ = 14355221760. Its totient is φ = 2827537440.

The previous prime is 6648345367. The next prime is 6648345413. The reversal of 6648345368 is 8635438466.

It is a super-4 number, since 4×6648345368⁴ (a number of 40 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6648345367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445796 + ... + 460467.

It is an arithmetic number, because the mean of its divisors is an integer number (448600680).

Almost surely, 2^6648345368 is an apocalyptic number.

It is an amenable number.

6648345368 is an abundant number, since it is smaller than the sum of its proper divisors (7706876392).

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

6648345368 is a wasteful number, since it uses less digits than its factorization.

6648345368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906407 (or 906403 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 53.

The square root of 6648345368 is about 81537.3863206321. The cubic root of 6648345368 is about 1880.3463757444.

The spelling of 6648345368 in words is "six billion, six hundred forty-eight million, three hundred forty-five thousand, three hundred sixty-eight".