6520612411 has 4 divisors (see below), whose sum is σ = 6521021752. Its totient is φ = 6520203072.

The previous prime is 6520612393. The next prime is 6520612433. The reversal of 6520612411 is 1142160256.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6520612411 - 2¹¹ = 6520610363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6520612411.

It is not an unprimeable number, because it can be changed into a prime (6520615411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179766 + ... + 212971.

It is an arithmetic number, because the mean of its divisors is an integer number (1630255438).

Almost surely, 2^6520612411 is an apocalyptic number.

6520612411 is a deficient number, since it is larger than the sum of its proper divisors (409341).

6520612411 is a wasteful number, since it uses less digits than its factorization.

6520612411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409340.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 6520612411 is about 80750.3090458482. The cubic root of 6520612411 is about 1868.2262161521.

Adding to 6520612411 its reverse (1142160256), we get a palindrome (7662772667).

The spelling of 6520612411 in words is "six billion, five hundred twenty million, six hundred twelve thousand, four hundred eleven".