6544303680 has 224 divisors, whose sum is σ = 22168567296. Its totient is φ = 1629945856.

The previous prime is 6544303679. The next prime is 6544303681. The reversal of 6544303680 is 863034456.

It is an interprime number because it is at equal distance from previous prime (6544303679) and next prime (6544303681).

It is not an unprimeable number, because it can be changed into a prime (6544303681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2234377 + ... + 2237303.

Almost surely, 2^6544303680 is an apocalyptic number.

6544303680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6544303680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11084283648).

6544303680 is an abundant number, since it is smaller than the sum of its proper divisors (15624263616).

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

6544303680 is a wasteful number, since it uses less digits than its factorization.

6544303680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3101 (or 3091 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The square root of 6544303680 is about 80896.8706440490. The cubic root of 6544303680 is about 1870.4860833282.

The spelling of 6544303680 in words is "six billion, five hundred forty-four million, three hundred three thousand, six hundred eighty".