5663721747617 has 8 divisors (see below), whose sum is σ = 5997464200872. Its totient is φ = 5330044000000.

The previous prime is 5663721747601. The next prime is 5663721747631. The reversal of 5663721747617 is 7167471273665.

It can be written as a sum of positive squares in 4 ways, for example, as 4757943175441 + 905778572176 = 2181271^2 + 951724^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5663721747617 - 2⁴ = 5663721747601 is a prime.

It is a super-3 number, since 3×5663721747617³ (a number of 39 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5663721747617.

It is not an unprimeable number, because it can be changed into a prime (5663721741617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15996134 + ... + 16346367.

It is an arithmetic number, because the mean of its divisors is an integer number (749683025109).

Almost surely, 2^{5663721747617} is an apocalyptic number.

It is an amenable number.

5663721747617 is a deficient number, since it is larger than the sum of its proper divisors (333742453255).

5663721747617 is a wasteful number, since it uses less digits than its factorization.

5663721747617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32352819.

The product of its digits is 62233920, while the sum is 62.

The spelling of 5663721747617 in words is "five trillion, six hundred sixty-three billion, seven hundred twenty-one million, seven hundred forty-seven thousand, six hundred seventeen".