5665217616 has 60 divisors (see below), whose sum is σ = 15975822720. Its totient is φ = 1873984320.

The previous prime is 5665217611. The next prime is 5665217689. The reversal of 5665217616 is 6167125665.

5665217616 is a `hidden beast` number, since 5 + 6 + 6 + 5 + 21 + 7 + 616 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5665217611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131296 + ... + 169023.

It is an arithmetic number, because the mean of its divisors is an integer number (266263712).

Almost surely, 2^5665217616 is an apocalyptic number.

It is an amenable number.

5665217616 is an abundant number, since it is smaller than the sum of its proper divisors (10310605104).

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

5665217616 is a wasteful number, since it uses less digits than its factorization.

5665217616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300464 (or 300455 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 5665217616 is about 75267.6398992289. The cubic root of 5665217616 is about 1782.6751023540.

The spelling of 5665217616 in words is "five billion, six hundred sixty-five million, two hundred seventeen thousand, six hundred sixteen".