6656358384 has 150 divisors (see below), whose sum is σ = 20862071736. Its totient is φ = 2048042880.

The previous prime is 6656358367. The next prime is 6656358389. The reversal of 6656358384 is 4838536566.

It is a happy number.

6656358384 is a `hidden beast` number, since 6 + 6 + 56 + 3 + 583 + 8 + 4 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6656358384.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656358389) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 203829 + ... + 234219.

Almost surely, 2^6656358384 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 6656358384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10431035868).

6656358384 is an abundant number, since it is smaller than the sum of its proper divisors (14205713352).

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

6656358384 is a wasteful number, since it uses less digits than its factorization.

6656358384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30437 (or 30409 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 54.

The square root of 6656358384 is about 81586.5085905752. The cubic root of 6656358384 is about 1881.1015108179.

The spelling of 6656358384 in words is "six billion, six hundred fifty-six million, three hundred fifty-eight thousand, three hundred eighty-four".