6565397496 has 192 divisors, whose sum is σ = 19987246080. Its totient is φ = 1789724160.

The previous prime is 6565397471. The next prime is 6565397497. The reversal of 6565397496 is 6947935656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6565397497) 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, 2660055 + ... + 2662521.

It is an arithmetic number, because the mean of its divisors is an integer number (104100240).

Almost surely, 2^6565397496 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 6565397496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9993623040).

6565397496 is an abundant number, since it is smaller than the sum of its proper divisors (13421848584).

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

6565397496 is a wasteful number, since it uses less digits than its factorization.

6565397496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594 (or 2583 counting only the distinct ones).

The product of its digits is 36741600, while the sum is 60.

The square root of 6565397496 is about 81027.1404900852. The cubic root of 6565397496 is about 1872.4935988368.

The spelling of 6565397496 in words is "six billion, five hundred sixty-five million, three hundred ninety-seven thousand, four hundred ninety-six".