56665611816244 has 24 divisors (see below), whose sum is σ = 100842188265000. Its totient is φ = 27854034660480.

The previous prime is 56665611816211. The next prime is 56665611816301. The reversal of 56665611816244 is 44261811656665.

It can be written as a sum of positive squares in 4 ways, for example, as 2313477504144 + 54352134312100 = 1521012^2 + 7372390^2 .

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59102719 + ... + 60053830.

It is an arithmetic number, because the mean of its divisors is an integer number (4201757844375).

Almost surely, 2^{56665611816244} is an apocalyptic number.

It is an amenable number.

56665611816244 is a deficient number, since it is larger than the sum of its proper divisors (44176576448756).

56665611816244 is a wasteful number, since it uses less digits than its factorization.

56665611816244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119158563 (or 119158561 counting only the distinct ones).

The product of its digits is 49766400, while the sum is 61.

The spelling of 56665611816244 in words is "fifty-six trillion, six hundred sixty-five billion, six hundred eleven million, eight hundred sixteen thousand, two hundred forty-four".