6536218640 has 160 divisors (see below), whose sum is σ = 17803431936. Its totient is φ = 2185297920.

The previous prime is 6536218627. The next prime is 6536218643. The reversal of 6536218640 is 468126356.

It is not an unprimeable number, because it can be changed into a prime (6536218643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5668304 + ... + 5669456.

Almost surely, 2^6536218640 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 6536218640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8901715968).

6536218640 is an abundant number, since it is smaller than the sum of its proper divisors (11267213296).

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

6536218640 is a wasteful number, since it uses less digits than its factorization.

6536218640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417 (or 1411 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 6536218640 is about 80846.8839226349. The cubic root of 6536218640 is about 1869.7154799855.

The spelling of 6536218640 in words is "six billion, five hundred thirty-six million, two hundred eighteen thousand, six hundred forty".