6501344000 has 432 divisors, whose sum is σ = 18599337120. Its totient is φ = 2256076800.

The previous prime is 6501343993. The next prime is 6501344009. The reversal of 6501344000 is 4431056.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6501344009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 175711982 + ... + 175712018.

Almost surely, 2^6501344000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6501344000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9299668560).

6501344000 is an abundant number, since it is smaller than the sum of its proper divisors (12097993120).

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

6501344000 is a wasteful number, since it uses less digits than its factorization.

6501344000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 6501344000 is about 80630.9121863321. The cubic root of 6501344000 is about 1866.3841976210.

Adding to 6501344000 its reverse (4431056), we get a palindrome (6505775056).

The spelling of 6501344000 in words is "six billion, five hundred one million, three hundred forty-four thousand".