6655550271 has 8 divisors (see below), whose sum is σ = 8884425264. Its totient is φ = 4431854400.

The previous prime is 6655550267. The next prime is 6655550281. The reversal of 6655550271 is 1720555566.

It is a happy number.

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

It is not a de Polignac number, because 6655550271 - 2² = 6655550267 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6655550221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1291780 + ... + 1296921.

It is an arithmetic number, because the mean of its divisors is an integer number (1110553158).

Almost surely, 2^6655550271 is an apocalyptic number.

6655550271 is a deficient number, since it is larger than the sum of its proper divisors (2228874993).

6655550271 is a wasteful number, since it uses less digits than its factorization.

6655550271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589561.

The product of its (nonzero) digits is 315000, while the sum is 42.

The square root of 6655550271 is about 81581.5559486334. Note that the first 3 decimals coincide. The cubic root of 6655550271 is about 1881.0253829003.

The spelling of 6655550271 in words is "six billion, six hundred fifty-five million, five hundred fifty thousand, two hundred seventy-one".