5436561566 has 24 divisors (see below), whose sum is σ = 8533232400. Its totient is φ = 2597528736.

The previous prime is 5436561521. The next prime is 5436561577. The reversal of 5436561566 is 6651656345.

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 5436561566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1478306 + ... + 1481978.

It is an arithmetic number, because the mean of its divisors is an integer number (355551350).

Almost surely, 2^5436561566 is an apocalyptic number.

5436561566 is a deficient number, since it is larger than the sum of its proper divisors (3096670834).

5436561566 is a wasteful number, since it uses less digits than its factorization.

5436561566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5120 (or 5097 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 47.

The square root of 5436561566 is about 73733.0425657317. The cubic root of 5436561566 is about 1758.3612464371.

The spelling of 5436561566 in words is "five billion, four hundred thirty-six million, five hundred sixty-one thousand, five hundred sixty-six".