6520273030340 has 24 divisors (see below), whose sum is σ = 13693331581272. Its totient is φ = 2607964789760.

The previous prime is 6520273030291. The next prime is 6520273030357. The reversal of 6520273030340 is 430303720256.

It can be written as a sum of positive squares in 4 ways, for example, as 4430149363264 + 2090123667076 = 2104792^2 + 1445726^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6520273030340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8655821 + ... + 9378900.

It is an arithmetic number, because the mean of its divisors is an integer number (570555482553).

Almost surely, 2^{6520273030340} is an apocalyptic number.

It is an amenable number.

6520273030340 is an abundant number, since it is smaller than the sum of its proper divisors (7173058550932).

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

6520273030340 is a wasteful number, since it uses less digits than its factorization.

6520273030340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18052807 (or 18052805 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 35.

Adding to 6520273030340 its reverse (430303720256), we get a palindrome (6950576750596).

The spelling of 6520273030340 in words is "six trillion, five hundred twenty billion, two hundred seventy-three million, thirty thousand, three hundred forty".