360985661 has 2 divisors, whose sum is σ = 360985662. Its totient is φ = 360985660.

The previous prime is 360985637. The next prime is 360985687. The reversal of 360985661 is 166589063.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 266701561 + 94284100 = 16331^2 + 9710^2 .

It is an emirp because it is prime and its reverse (166589063) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-360985661 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 (360985601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180492830 + 180492831.

It is an arithmetic number, because the mean of its divisors is an integer number (180492831).

Almost surely, 2^360985661 is an apocalyptic number.

It is an amenable number.

360985661 is a deficient number, since it is larger than the sum of its proper divisors (1).

360985661 is an equidigital number, since it uses as much as digits as its factorization.

360985661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 360985661 is about 18999.6226541476. The cubic root of 360985661 is about 712.0273083464.

The spelling of 360985661 in words is "three hundred sixty million, nine hundred eighty-five thousand, six hundred sixty-one".