6655000000000 has 440 divisors, whose sum is σ = 18282128531832. Its totient is φ = 2420000000000.

The previous prime is 6654999999997. The next prime is 6655000000021. The reversal of 6655000000000 is 5566.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (440).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6654999999899 and 6654999999908.

It is a congruent number.

It is an unprimeable number.

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 43 ways as a sum of consecutive naturals, for example, 604999999995 + ... + 605000000005.

Almost surely, 2^{6655000000000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6655000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9141064265916).

6655000000000 is an abundant number, since it is smaller than the sum of its proper divisors (11627128531832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6655000000000 is an frugal number, since it uses more digits than its factorization.

6655000000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 18 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

Multiplying 6655000000000 by its sum of digits (22), we get a square (146410000000000 = 12100000²).

6655000000000 divided by its sum of digits (22) gives a square (302500000000 = 550000²).

Adding to 6655000000000 its reverse (5566), we get a palindrome (6655000005566).

The spelling of 6655000000000 in words is "six trillion, six hundred fifty-five billion", and thus it is an aban number.