6506211712 has 512 divisors, whose sum is σ = 19247155200. Its totient is φ = 2105671680.

The previous prime is 6506211653. The next prime is 6506211721. The reversal of 6506211712 is 2171126056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63167053 + ... + 63167155.

It is an arithmetic number, because the mean of its divisors is an integer number (37592100).

Almost surely, 2^6506211712 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 6506211712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9623577600).

6506211712 is an abundant number, since it is smaller than the sum of its proper divisors (12740943488).

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

6506211712 is a wasteful number, since it uses less digits than its factorization.

6506211712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 6506211712 is about 80661.0916861407. The cubic root of 6506211712 is about 1866.8498836036.

Adding to 6506211712 its reverse (2171126056), we get a palindrome (8677337768).

The spelling of 6506211712 in words is "six billion, five hundred six million, two hundred eleven thousand, seven hundred twelve".