6656655708 has 96 divisors (see below), whose sum is σ = 17921736000. Its totient is φ = 2134137600.

The previous prime is 6656655701. The next prime is 6656655781. The reversal of 6656655708 is 8075566566.

6656655708 is a `hidden beast` number, since 6 + 6 + 5 + 6 + 65 + 570 + 8 = 666.

It is a super-2 number, since 2×6656655708² = 88622130429697962528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656655701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 838558 + ... + 846458.

It is an arithmetic number, because the mean of its divisors is an integer number (186684750).

Almost surely, 2^6656655708 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 6656655708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8960868000).

6656655708 is an abundant number, since it is smaller than the sum of its proper divisors (11265080292).

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

6656655708 is a wasteful number, since it uses less digits than its factorization.

6656655708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8212 (or 8204 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 54.

The square root of 6656655708 is about 81588.3307097283. The cubic root of 6656655708 is about 1881.1295185395.

The spelling of 6656655708 in words is "six billion, six hundred fifty-six million, six hundred fifty-five thousand, seven hundred eight".