565665243306552 has 384 divisors, whose sum is σ = 1671982055640000. Its totient is φ = 172045028671488.

The previous prime is 565665243306529. The next prime is 565665243306617. The reversal of 565665243306552 is 255603342566565.

565665243306552 is a `hidden beast` number, since 5 + 6 + 5 + 6 + 6 + 5 + 2 + 43 + 30 + 6 + 552 = 666.

It is a super-2 number, since 2×565665243306552² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 565665243306552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18348463074 + ... + 18348493902.

Almost surely, 2^{565665243306552} 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 565665243306552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (835991027820000).

565665243306552 is an abundant number, since it is smaller than the sum of its proper divisors (1106316812333448).

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

565665243306552 is a wasteful number, since it uses less digits than its factorization.

565665243306552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32343 (or 32336 counting only the distinct ones).

The product of its (nonzero) digits is 583200000, while the sum is 63.

The spelling of 565665243306552 in words is "five hundred sixty-five trillion, six hundred sixty-five billion, two hundred forty-three million, three hundred six thousand, five hundred fifty-two".