5564520654660 has 480 divisors, whose sum is σ = 20135453184000. Its totient is φ = 1272227938560.

The previous prime is 5564520654629. The next prime is 5564520654661. The reversal of 5564520654660 is 664560254655.

It is a happy number.

5564520654660 is a `hidden beast` number, since 5 + 5 + 6 + 4 + 520 + 6 + 54 + 6 + 60 = 666.

It is a super-2 number, since 2×5564520654660² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 5564520654597 and 5564520654606.

It is not an unprimeable number, because it can be changed into a prime (5564520654661) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 75466491 + ... + 75540189.

It is an arithmetic number, because the mean of its divisors is an integer number (41948860800).

Almost surely, 2^{5564520654660} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5564520654660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10067726592000).

5564520654660 is an abundant number, since it is smaller than the sum of its proper divisors (14570932529340).

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

5564520654660 is a wasteful number, since it uses less digits than its factorization.

5564520654660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73973 (or 73962 counting only the distinct ones).

The product of its (nonzero) digits is 25920000, while the sum is 54.

The spelling of 5564520654660 in words is "five trillion, five hundred sixty-four billion, five hundred twenty million, six hundred fifty-four thousand, six hundred sixty".