6565315655 has 8 divisors (see below), whose sum is σ = 8150047200. Its totient is φ = 5071140256.

The previous prime is 6565315607. The next prime is 6565315709. The reversal of 6565315655 is 5565135656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6565315655 - 2⁸ = 6565315399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22638875 + ... + 22639164.

It is an arithmetic number, because the mean of its divisors is an integer number (1018755900).

Almost surely, 2^6565315655 is an apocalyptic number.

6565315655 is a deficient number, since it is larger than the sum of its proper divisors (1584731545).

6565315655 is a wasteful number, since it uses less digits than its factorization.

6565315655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45278073.

The product of its digits is 2025000, while the sum is 47.

The square root of 6565315655 is about 81026.6354663699. The cubic root of 6565315655 is about 1872.4858182779.

The spelling of 6565315655 in words is "six billion, five hundred sixty-five million, three hundred fifteen thousand, six hundred fifty-five".