57566551642880 has 288 divisors, whose sum is σ = 167881189593600. Its totient is φ = 18473023143936.

The previous prime is 57566551642871. The next prime is 57566551642949. The reversal of 57566551642880 is 8824615566575.

It is a self number, because there is not a number n which added to its sum of digits gives 57566551642880.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12092876 + ... + 16166964.

It is an arithmetic number, because the mean of its divisors is an integer number (582920797200).

Almost surely, 2^{57566551642880} 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 57566551642880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83940594796800).

57566551642880 is an abundant number, since it is smaller than the sum of its proper divisors (110314637950720).

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

57566551642880 is a wasteful number, since it uses less digits than its factorization.

57566551642880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074219 (or 4074205 counting only the distinct ones).

The product of its (nonzero) digits is 483840000, while the sum is 68.

The spelling of 57566551642880 in words is "fifty-seven trillion, five hundred sixty-six billion, five hundred fifty-one million, six hundred forty-two thousand, eight hundred eighty".