6656855700 has 144 divisors (see below), whose sum is σ = 21054652416. Its totient is φ = 1610467200.

The previous prime is 6656855633. The next prime is 6656855729. The reversal of 6656855700 is 75586566.

It is a self number, because there is not a number n which added to its sum of digits gives 6656855700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1856109 + ... + 1859691.

It is an arithmetic number, because the mean of its divisors is an integer number (146212864).

Almost surely, 2^6656855700 is an apocalyptic number.

6656855700 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6656855700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10527326208).

6656855700 is an abundant number, since it is smaller than the sum of its proper divisors (14397796716).

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

6656855700 is a wasteful number, since it uses less digits than its factorization.

6656855700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4174 (or 4167 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 48.

The square root of 6656855700 is about 81589.5563169699. The cubic root of 6656855700 is about 1881.1483571828.

The spelling of 6656855700 in words is "six billion, six hundred fifty-six million, eight hundred fifty-five thousand, seven hundred".