6515565013 has 8 divisors (see below), whose sum is σ = 6615143360. Its totient is φ = 6416055360.

The previous prime is 6515565011. The next prime is 6515565029. The reversal of 6515565013 is 3105655156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6515565013 - 2¹ = 6515565011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6515565011) 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, 193528 + ... + 224686.

It is an arithmetic number, because the mean of its divisors is an integer number (826892920).

Almost surely, 2^6515565013 is an apocalyptic number.

It is an amenable number.

6515565013 is a deficient number, since it is larger than the sum of its proper divisors (99578347).

6515565013 is a wasteful number, since it uses less digits than its factorization.

6515565013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34347.

The product of its (nonzero) digits is 67500, while the sum is 37.

The square root of 6515565013 is about 80719.0498767175. The cubic root of 6515565013 is about 1867.7440469533.

The spelling of 6515565013 in words is "six billion, five hundred fifteen million, five hundred sixty-five thousand, thirteen".