6656376870 has 384 divisors, whose sum is σ = 21511526400. Its totient is φ = 1405071360.

The previous prime is 6656376869. The next prime is 6656376887. The reversal of 6656376870 is 786736566.

6656376870 is a `hidden beast` number, since 6 + 6 + 563 + 7 + 6 + 8 + 70 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 33449031 + ... + 33449229.

It is an arithmetic number, because the mean of its divisors is an integer number (56019600).

Almost surely, 2^6656376870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6656376870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10755763200).

6656376870 is an abundant number, since it is smaller than the sum of its proper divisors (14855149530).

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

6656376870 is a wasteful number, since it uses less digits than its factorization.

6656376870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The square root of 6656376870 is about 81586.6218812864. The cubic root of 6656376870 is about 1881.1032522110.

The spelling of 6656376870 in words is "six billion, six hundred fifty-six million, three hundred seventy-six thousand, eight hundred seventy".