5665556511616 has 64 divisors (see below), whose sum is σ = 11500612016400. Its totient is φ = 2779135856640.

The previous prime is 5665556511551. The next prime is 5665556511689. The reversal of 5665556511616 is 6161156555665.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173715151 + ... + 173747761.

Almost surely, 2^{5665556511616} is an apocalyptic number.

It is an amenable number.

5665556511616 is an abundant number, since it is smaller than the sum of its proper divisors (5835055504784).

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

5665556511616 is a wasteful number, since it uses less digits than its factorization.

5665556511616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58287 (or 58275 counting only the distinct ones).

The product of its digits is 24300000, while the sum is 58.

The spelling of 5665556511616 in words is "five trillion, six hundred sixty-five billion, five hundred fifty-six million, five hundred eleven thousand, six hundred sixteen".