65524253320 has 32 divisors (see below), whose sum is σ = 151025416920. Its totient is φ = 25570439680.

The previous prime is 65524253281. The next prime is 65524253323. The reversal of 65524253320 is 2335242556.

It can be written as a sum of positive squares in 4 ways, for example, as 35995955076 + 29528298244 = 189726^2 + 171838^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 65524253320.

It is not an unprimeable number, because it can be changed into a prime (65524253323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19975267 + ... + 19978546.

Almost surely, 2^65524253320 is an apocalyptic number.

It is an amenable number.

65524253320 is an abundant number, since it is smaller than the sum of its proper divisors (85501163600).

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

65524253320 is a wasteful number, since it uses less digits than its factorization.

65524253320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39953865 (or 39953861 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 65524253320 its reverse (2335242556), we get a palindrome (67859495876).

The spelling of 65524253320 in words is "sixty-five billion, five hundred twenty-four million, two hundred fifty-three thousand, three hundred twenty".