56655739908 has 72 divisors (see below), whose sum is σ = 145084526496. Its totient is φ = 18638928000.

The previous prime is 56655739901. The next prime is 56655739909. The reversal of 56655739908 is 80993755665.

56655739908 is a `hidden beast` number, since 56 + 6 + 5 + 573 + 9 + 9 + 0 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (56655739901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3131368 + ... + 3149408.

It is an arithmetic number, because the mean of its divisors is an integer number (2015062868).

Almost surely, 2^56655739908 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 56655739908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72542263248).

56655739908 is an abundant number, since it is smaller than the sum of its proper divisors (88428786588).

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

56655739908 is a wasteful number, since it uses less digits than its factorization.

56655739908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19185 (or 19180 counting only the distinct ones).

The product of its (nonzero) digits is 61236000, while the sum is 63.

The spelling of 56655739908 in words is "fifty-six billion, six hundred fifty-five million, seven hundred thirty-nine thousand, nine hundred eight".