109663559 has 2 divisors, whose sum is σ = 109663560. Its totient is φ = 109663558.

The previous prime is 109663511. The next prime is 109663571. The reversal of 109663559 is 955366901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109663559 - 2²⁰ = 108614983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109663579) 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, 54831779 + 54831780.

It is an arithmetic number, because the mean of its divisors is an integer number (54831780).

Almost surely, 2^109663559 is an apocalyptic number.

109663559 is a deficient number, since it is larger than the sum of its proper divisors (1).

109663559 is an equidigital number, since it uses as much as digits as its factorization.

109663559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 218700, while the sum is 44.

The square root of 109663559 is about 10472.0370033724. The cubic root of 109663559 is about 478.6529928637.

The spelling of 109663559 in words is "one hundred nine million, six hundred sixty-three thousand, five hundred fifty-nine".