6504520516 has 12 divisors (see below), whose sum is σ = 12258519532. Its totient is φ = 3002086368.

The previous prime is 6504520489. The next prime is 6504520571. The reversal of 6504520516 is 6150254056.

It can be written as a sum of positive squares in 2 ways, for example, as 4284226116 + 2220294400 = 65454^2 + 47120^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62543415 + ... + 62543518.

Almost surely, 2^6504520516 is an apocalyptic number.

It is an amenable number.

6504520516 is a deficient number, since it is larger than the sum of its proper divisors (5753999016).

6504520516 is a wasteful number, since it uses less digits than its factorization.

6504520516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125086950 (or 125086948 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 6504520516 is about 80650.6076604510. The cubic root of 6504520516 is about 1866.6881160092.

The spelling of 6504520516 in words is "six billion, five hundred four million, five hundred twenty thousand, five hundred sixteen".