5665565666552 has 128 divisors (see below), whose sum is σ = 12566389248000. Its totient is φ = 2367825715200.

The previous prime is 5665565666531. The next prime is 5665565666567. The reversal of 5665565666552 is 2556665655665.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9045848 + ... + 9651864.

It is an arithmetic number, because the mean of its divisors is an integer number (98174916000).

Almost surely, 2^{5665565666552} 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 5665565666552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6283194624000).

5665565666552 is an abundant number, since it is smaller than the sum of its proper divisors (6900823581448).

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

5665565666552 is a wasteful number, since it uses less digits than its factorization.

5665565666552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606237 (or 606233 counting only the distinct ones).

The product of its digits is 1458000000, while the sum is 68.

The spelling of 5665565666552 in words is "five trillion, six hundred sixty-five billion, five hundred sixty-five million, six hundred sixty-six thousand, five hundred fifty-two".