6516613125 has 60 divisors (see below), whose sum is σ = 12831767520. Its totient is φ = 3159540000.

The previous prime is 6516613109. The next prime is 6516613127. The reversal of 6516613125 is 5213166156.

6516613125 is a `hidden beast` number, since 6 + 5 + 16 + 613 + 1 + 25 = 666.

It is not a de Polignac number, because 6516613125 - 2⁴ = 6516613109 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6516613125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6516613127) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 9216 + ... + 114534.

It is an arithmetic number, because the mean of its divisors is an integer number (213862792).

Almost surely, 2^6516613125 is an apocalyptic number.

It is an amenable number.

6516613125 is a deficient number, since it is larger than the sum of its proper divisors (6315154395).

6516613125 is a wasteful number, since it uses less digits than its factorization.

6516613125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105356 (or 105338 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 6516613125 is about 80725.5419616369. The cubic root of 6516613125 is about 1867.8441917596.

It can be divided in two parts, 65166131 and 25, that added together give a palindrome (65166156).

The spelling of 6516613125 in words is "six billion, five hundred sixteen million, six hundred thirteen thousand, one hundred twenty-five".