5665561610553 has 48 divisors (see below), whose sum is σ = 9323561520000. Its totient is φ = 3286401237504.

The previous prime is 5665561610549. The next prime is 5665561610557. The reversal of 5665561610553 is 3550161655665.

It is a happy number.

5665561610553 is a `hidden beast` number, since 5 + 6 + 6 + 5 + 5 + 616 + 10 + 5 + 5 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (5665561610549) and next prime (5665561610557).

It is not a de Polignac number, because 5665561610553 - 2² = 5665561610549 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5665561610553.

It is not an unprimeable number, because it can be changed into a prime (5665561610557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5961168 + ... + 6845921.

It is an arithmetic number, because the mean of its divisors is an integer number (194240865000).

Almost surely, 2^{5665561610553} is an apocalyptic number.

It is an amenable number.

5665561610553 is a deficient number, since it is larger than the sum of its proper divisors (3657999909447).

5665561610553 is a wasteful number, since it uses less digits than its factorization.

5665561610553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12807326 (or 12807323 counting only the distinct ones).

The product of its (nonzero) digits is 12150000, while the sum is 54.

The spelling of 5665561610553 in words is "five trillion, six hundred sixty-five billion, five hundred sixty-one million, six hundred ten thousand, five hundred fifty-three".