5665561110012 has 24 divisors (see below), whose sum is σ = 13219793875456. Its totient is φ = 1888498757808.

The previous prime is 5665561109993. The next prime is 5665561110037. The reversal of 5665561110012 is 2100111655665.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1590988 + ... + 3723219.

Almost surely, 2^{5665561110012} is an apocalyptic number.

It is an amenable number.

5665561110012 is an abundant number, since it is smaller than the sum of its proper divisors (7554232765444).

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

5665561110012 is a wasteful number, since it uses less digits than its factorization.

5665561110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5403057 (or 5403055 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 39.

Adding to 5665561110012 its reverse (2100111655665), we get a palindrome (7765672765677).

The spelling of 5665561110012 in words is "five trillion, six hundred sixty-five billion, five hundred sixty-one million, one hundred ten thousand, twelve".