5655815660880 has 1440 divisors, whose sum is σ = 24783693742080. Its totient is φ = 1122742425600.

The previous prime is 5655815660851. The next prime is 5655815660927. The reversal of 5655815660880 is 880665185565.

5655815660880 is a `hidden beast` number, since 5 + 6 + 5 + 5 + 8 + 15 + 6 + 608 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

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 287 ways as a sum of consecutive naturals, for example, 4422060081 + ... + 4422061359.

It is an arithmetic number, because the mean of its divisors is an integer number (17210898432).

Almost surely, 2^{5655815660880} 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 5655815660880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12391846871040).

5655815660880 is an abundant number, since it is smaller than the sum of its proper divisors (19127878081200).

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

5655815660880 is a wasteful number, since it uses less digits than its factorization.

5655815660880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461 (or 1421 counting only the distinct ones).

The product of its (nonzero) digits is 69120000, while the sum is 63.

The spelling of 5655815660880 in words is "five trillion, six hundred fifty-five billion, eight hundred fifteen million, six hundred sixty thousand, eight hundred eighty".