6656550055 has 4 divisors (see below), whose sum is σ = 7987860072. Its totient is φ = 5325240040.

The previous prime is 6656550049. The next prime is 6656550067. The reversal of 6656550055 is 5500556566.

6656550055 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6656550055 - 2²³ = 6648161447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6656549993 and 6656550020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665655001 + ... + 665655010.

It is an arithmetic number, because the mean of its divisors is an integer number (1996965018).

Almost surely, 2^6656550055 is an apocalyptic number.

6656550055 is a deficient number, since it is larger than the sum of its proper divisors (1331310017).

6656550055 is a wasteful number, since it uses less digits than its factorization.

6656550055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331310016.

The product of its (nonzero) digits is 675000, while the sum is 43.

The square root of 6656550055 is about 81587.6832309878. The cubic root of 6656550055 is about 1881.1195661932.

The spelling of 6656550055 in words is "six billion, six hundred fifty-six million, five hundred fifty thousand, fifty-five".