5665660161163 has 4 divisors (see below), whose sum is σ = 5665737175200. Its totient is φ = 5665583147128.

The previous prime is 5665660161103. The next prime is 5665660161173. The reversal of 5665660161163 is 3611610665665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5665660161163 - 2⁹ = 5665660160651 is a prime.

It is a super-2 number, since 2×5665660161163² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5665660161163.

It is not an unprimeable number, because it can be changed into a prime (5665660161103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38396563 + ... + 38543836.

It is an arithmetic number, because the mean of its divisors is an integer number (1416434293800).

Almost surely, 2^{5665660161163} is an apocalyptic number.

5665660161163 is a deficient number, since it is larger than the sum of its proper divisors (77014037).

5665660161163 is an equidigital number, since it uses as much as digits as its factorization.

5665660161163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77014036.

The product of its (nonzero) digits is 3499200, while the sum is 52.

The spelling of 5665660161163 in words is "five trillion, six hundred sixty-five billion, six hundred sixty million, one hundred sixty-one thousand, one hundred sixty-three".