6655444871 has 4 divisors (see below), whose sum is σ = 6884943000. Its totient is φ = 6425946744.

The previous prime is 6655444769. The next prime is 6655444877. The reversal of 6655444871 is 1784445566.

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

It is a cyclic number.

It is not a de Polignac number, because 6655444871 - 2¹⁸ = 6655182727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6655444877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114749021 + ... + 114749078.

It is an arithmetic number, because the mean of its divisors is an integer number (1721235750).

Almost surely, 2^6655444871 is an apocalyptic number.

6655444871 is a deficient number, since it is larger than the sum of its proper divisors (229498129).

6655444871 is a wasteful number, since it uses less digits than its factorization.

6655444871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229498128.

The product of its digits is 3225600, while the sum is 50.

The square root of 6655444871 is about 81580.9099667318. The cubic root of 6655444871 is about 1881.0154532870.

The spelling of 6655444871 in words is "six billion, six hundred fifty-five million, four hundred forty-four thousand, eight hundred seventy-one".