5665511166656 has 42 divisors (see below), whose sum is σ = 12357457289100. Its totient is φ = 2575232344960.

The previous prime is 5665511166647. The next prime is 5665511166683. The reversal of 5665511166656 is 6566611155665.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 5665511166595 and 5665511166604.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 365792306 + ... + 365807793.

It is an arithmetic number, because the mean of its divisors is an integer number (294225173550).

Almost surely, 2^{5665511166656} is an apocalyptic number.

It is an amenable number.

5665511166656 is an abundant number, since it is smaller than the sum of its proper divisors (6691946122444).

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

5665511166656 is a wasteful number, since it uses less digits than its factorization.

5665511166656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731600133 (or 731600112 counting only the distinct ones).

The product of its digits is 29160000, while the sum is 59.

The spelling of 5665511166656 in words is "five trillion, six hundred sixty-five billion, five hundred eleven million, one hundred sixty-six thousand, six hundred fifty-six".