6501200000 has 96 divisors (see below), whose sum is σ = 16189471620. Its totient is φ = 2600320000.

The previous prime is 6501199981. The next prime is 6501200023. The reversal of 6501200000 is 21056.

It can be written as a sum of positive squares in 6 ways, for example, as 418447936 + 6082752064 = 20456^2 + 77992^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 391874 + ... + 408126.

Almost surely, 2^6501200000 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 6501200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8094735810).

6501200000 is an abundant number, since it is smaller than the sum of its proper divisors (9688271620).

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

6501200000 is an frugal number, since it uses more digits than its factorization.

6501200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16292 (or 16260 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 6501200000 is about 80630.0192236117. The cubic root of 6501200000 is about 1866.3704178390.

Adding to 6501200000 its reverse (21056), we get a palindrome (6501221056).

The spelling of 6501200000 in words is "six billion, five hundred one million, two hundred thousand".