105600661 has 2 divisors, whose sum is σ = 105600662. Its totient is φ = 105600660.

The previous prime is 105600641. The next prime is 105600667. The reversal of 105600661 is 166006501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82464561 + 23136100 = 9081^2 + 4810^2 .

It is a cyclic number.

It is not a de Polignac number, because 105600661 - 2⁹ = 105600149 is a prime.

It is a super-2 number, since 2×105600661² = 22302999207273842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105600667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52800330 + 52800331.

It is an arithmetic number, because the mean of its divisors is an integer number (52800331).

Almost surely, 2^105600661 is an apocalyptic number.

It is an amenable number.

105600661 is a deficient number, since it is larger than the sum of its proper divisors (1).

105600661 is an equidigital number, since it uses as much as digits as its factorization.

105600661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 105600661 is about 10276.2182246194. The cubic root of 105600661 is about 472.6672863984.

The spelling of 105600661 in words is "one hundred five million, six hundred thousand, six hundred sixty-one".