6655844156 has 12 divisors (see below), whose sum is σ = 12543706392. Its totient is φ = 3071928048.

The previous prime is 6655844141. The next prime is 6655844161. The reversal of 6655844156 is 6514485566.

It is a happy number.

It is a super-2 number, since 2×6655844156² = 88600522857918704672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63998450 + ... + 63998553.

It is an arithmetic number, because the mean of its divisors is an integer number (1045308866).

Almost surely, 2^6655844156 is an apocalyptic number.

It is an amenable number.

6655844156 is a deficient number, since it is larger than the sum of its proper divisors (5887862236).

6655844156 is a wasteful number, since it uses less digits than its factorization.

6655844156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127997020 (or 127997018 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 50.

The square root of 6655844156 is about 81583.3571018011. The cubic root of 6655844156 is about 1881.0530689161.

The spelling of 6655844156 in words is "six billion, six hundred fifty-five million, eight hundred forty-four thousand, one hundred fifty-six".