110161661 has 2 divisors, whose sum is σ = 110161662. Its totient is φ = 110161660.

The previous prime is 110161643. The next prime is 110161679. The reversal of 110161661 is 166161011.

It is a balanced prime because it is at equal distance from previous prime (110161643) and next prime (110161679).

It can be written as a sum of positive squares in only one way, i.e., 90136036 + 20025625 = 9494^2 + 4475^2 .

It is a cyclic number.

It is not a de Polignac number, because 110161661 - 2²² = 105967357 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110161061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55080830 + 55080831.

It is an arithmetic number, because the mean of its divisors is an integer number (55080831).

Almost surely, 2^110161661 is an apocalyptic number.

It is an amenable number.

110161661 is a deficient number, since it is larger than the sum of its proper divisors (1).

110161661 is an equidigital number, since it uses as much as digits as its factorization.

110161661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 110161661 is about 10495.7925379649. The cubic root of 110161661 is about 479.3765937607.

The spelling of 110161661 in words is "one hundred ten million, one hundred sixty-one thousand, six hundred sixty-one".