6506651536 has 320 divisors, whose sum is σ = 17818859520. Its totient is φ = 2221793280.

The previous prime is 6506651527. The next prime is 6506651537. The reversal of 6506651536 is 6351566056.

It is a junction number, because it is equal to n+sod(n) for n = 6506651492 and 6506651501.

It is not an unprimeable number, because it can be changed into a prime (6506651537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33028590 + ... + 33028786.

It is an arithmetic number, because the mean of its divisors is an integer number (55683936).

Almost surely, 2^6506651536 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 6506651536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8909429760).

6506651536 is an abundant number, since it is smaller than the sum of its proper divisors (11312207984).

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

6506651536 is a wasteful number, since it uses less digits than its factorization.

6506651536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 43.

The square root of 6506651536 is about 80663.8180103074. The cubic root of 6506651536 is about 1866.8919493975.

The spelling of 6506651536 in words is "six billion, five hundred six million, six hundred fifty-one thousand, five hundred thirty-six".