111536365609 has 2 divisors, whose sum is σ = 111536365610. Its totient is φ = 111536365608.

The previous prime is 111536365571. The next prime is 111536365663. The reversal of 111536365609 is 906563635111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111470512384 + 65853225 = 333872^2 + 8115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111536365609 is a prime.

It is not a weakly prime, because it can be changed into another prime (111536368609) 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, 55768182804 + 55768182805.

It is an arithmetic number, because the mean of its divisors is an integer number (55768182805).

Almost surely, 2^111536365609 is an apocalyptic number.

It is an amenable number.

111536365609 is a deficient number, since it is larger than the sum of its proper divisors (1).

111536365609 is an equidigital number, since it uses as much as digits as its factorization.

111536365609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 437400, while the sum is 46.

The spelling of 111536365609 in words is "one hundred eleven billion, five hundred thirty-six million, three hundred sixty-five thousand, six hundred nine".