6656610565 has 8 divisors (see below), whose sum is σ = 8714108448. Its totient is φ = 4841171280.

The previous prime is 6656610539. The next prime is 6656610581. The reversal of 6656610565 is 5650166566.

6656610565 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6656610565 - 2¹⁹ = 6656086277 is a prime.

It is a Duffinian number.

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, 60514587 + ... + 60514696.

It is an arithmetic number, because the mean of its divisors is an integer number (1089263556).

Almost surely, 2^6656610565 is an apocalyptic number.

It is an amenable number.

6656610565 is a deficient number, since it is larger than the sum of its proper divisors (2057497883).

6656610565 is a wasteful number, since it uses less digits than its factorization.

6656610565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121029299.

The product of its (nonzero) digits is 972000, while the sum is 46.

The square root of 6656610565 is about 81588.0540581769. The cubic root of 6656610565 is about 1881.1252661529.

The spelling of 6656610565 in words is "six billion, six hundred fifty-six million, six hundred ten thousand, five hundred sixty-five".