5666600161 has 2 divisors, whose sum is σ = 5666600162. Its totient is φ = 5666600160.

The previous prime is 5666600141. The next prime is 5666600237. The reversal of 5666600161 is 1610066665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5140173025 + 526427136 = 71695^2 + 22944^2 .

It is a cyclic number.

It is not a de Polignac number, because 5666600161 - 2⁵ = 5666600129 is a prime.

It is a super-2 number, since 2×5666600161² = 64220714769290451842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5666600161.

It is not a weakly prime, because it can be changed into another prime (5666600101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2833300080 + 2833300081.

It is an arithmetic number, because the mean of its divisors is an integer number (2833300081).

Almost surely, 2^5666600161 is an apocalyptic number.

It is an amenable number.

5666600161 is a deficient number, since it is larger than the sum of its proper divisors (1).

5666600161 is an equidigital number, since it uses as much as digits as its factorization.

5666600161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 5666600161 is about 75276.8235315492. The cubic root of 5666600161 is about 1782.8201057915.

The spelling of 5666600161 in words is "five billion, six hundred sixty-six million, six hundred thousand, one hundred sixty-one".