5665565560554 has 160 divisors (see below), whose sum is σ = 12830561130816. Its totient is φ = 1868511214080.

The previous prime is 5665565560549. The next prime is 5665565560597. The reversal of 5665565560554 is 4550655655665.

5665565560554 is a `hidden beast` number, since 5 + 6 + 6 + 5 + 5 + 65 + 560 + 5 + 5 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 5665565560491 and 5665565560500.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6416268597 + ... + 6416269479.

Almost surely, 2^{5665565560554} is an apocalyptic number.

5665565560554 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5665565560554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6415280565408).

5665565560554 is an abundant number, since it is smaller than the sum of its proper divisors (7164995570262).

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

5665565560554 is a wasteful number, since it uses less digits than its factorization.

5665565560554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002 (or 1993 counting only the distinct ones).

The product of its (nonzero) digits is 405000000, while the sum is 63.

The spelling of 5665565560554 in words is "five trillion, six hundred sixty-five billion, five hundred sixty-five million, five hundred sixty thousand, five hundred fifty-four".