6537526665 has 16 divisors (see below), whose sum is σ = 10468839168. Its totient is φ = 3483748736.

The previous prime is 6537526663. The next prime is 6537526703. The reversal of 6537526665 is 5666257356.

It is a cyclic number.

It is not a de Polignac number, because 6537526665 - 2¹ = 6537526663 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6537526663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164769 + ... + 200558.

It is an arithmetic number, because the mean of its divisors is an integer number (654302448).

Almost surely, 2^6537526665 is an apocalyptic number.

It is an amenable number.

6537526665 is a deficient number, since it is larger than the sum of its proper divisors (3931312503).

6537526665 is a wasteful number, since it uses less digits than its factorization.

6537526665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366528.

The product of its digits is 6804000, while the sum is 51.

The square root of 6537526665 is about 80854.9730381502. The cubic root of 6537526665 is about 1869.8401938608.

The spelling of 6537526665 in words is "six billion, five hundred thirty-seven million, five hundred twenty-six thousand, six hundred sixty-five".