6566252565 has 16 divisors (see below), whose sum is σ = 10515607488. Its totient is φ = 3498800256.

The previous prime is 6566252557. The next prime is 6566252599. The reversal of 6566252565 is 5652526656.

It is not a de Polignac number, because 6566252565 - 2³ = 6566252557 is a prime.

It is a super-3 number, since 3×6566252565³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183067 + ... + 215976.

It is an arithmetic number, because the mean of its divisors is an integer number (657225468).

Almost surely, 2^6566252565 is an apocalyptic number.

It is an amenable number.

6566252565 is a deficient number, since it is larger than the sum of its proper divisors (3949354923).

6566252565 is a wasteful number, since it uses less digits than its factorization.

6566252565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400148.

The product of its digits is 3240000, while the sum is 48.

The square root of 6566252565 is about 81032.4167540374. The cubic root of 6566252565 is about 1872.5748857011.

The spelling of 6566252565 in words is "six billion, five hundred sixty-six million, two hundred fifty-two thousand, five hundred sixty-five".