6501535216 has 240 divisors, whose sum is σ = 15905544480. Its totient is φ = 2554675200.

The previous prime is 6501535207. The next prime is 6501535219. The reversal of 6501535216 is 6125351056.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6501535219) 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, 23136996 + ... + 23137276.

It is an arithmetic number, because the mean of its divisors is an integer number (66273102).

Almost surely, 2^6501535216 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 6501535216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7952772240).

6501535216 is an abundant number, since it is smaller than the sum of its proper divisors (9404009264).

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

6501535216 is a wasteful number, since it uses less digits than its factorization.

6501535216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 6501535216 is about 80632.0979263221. The cubic root of 6501535216 is about 1866.4024953259.

The spelling of 6501535216 in words is "six billion, five hundred one million, five hundred thirty-five thousand, two hundred sixteen".