6565524161 has 12 divisors (see below), whose sum is σ = 7650854640. Its totient is φ = 5617712520.

The previous prime is 6565524143. The next prime is 6565524167. The reversal of 6565524161 is 1614255656.

It is not a de Polignac number, because 6565524161 - 2¹⁸ = 6565262017 is a prime.

It is a super-2 number, since 2×6565524161² = 86212215017349507842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6565524167) 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 11 ways as a sum of consecutive naturals, for example, 89351 + ... + 145308.

It is an arithmetic number, because the mean of its divisors is an integer number (637571220).

Almost surely, 2^6565524161 is an apocalyptic number.

It is an amenable number.

6565524161 is a deficient number, since it is larger than the sum of its proper divisors (1085330479).

6565524161 is a wasteful number, since it uses less digits than its factorization.

6565524161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235244 (or 235237 counting only the distinct ones).

The product of its digits is 216000, while the sum is 41.

The square root of 6565524161 is about 81027.9221071354. The cubic root of 6565524161 is about 1872.5056406503.

The spelling of 6565524161 in words is "six billion, five hundred sixty-five million, five hundred twenty-four thousand, one hundred sixty-one".