111005601060065 has 4 divisors (see below), whose sum is σ = 133206721272084. Its totient is φ = 88804480848048.

The previous prime is 111005601060061. The next prime is 111005601060083. The reversal of 111005601060065 is 560060106500111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82089181054864 + 28916420005201 = 9060308^2 + 5377399^2 .

It is a cyclic number.

It is not a de Polignac number, because 111005601060065 - 2² = 111005601060061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111005601060061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11100560106002 + ... + 11100560106011.

It is an arithmetic number, because the mean of its divisors is an integer number (33301680318021).

Almost surely, 2^{111005601060065} is an apocalyptic number.

It is an amenable number.

111005601060065 is a deficient number, since it is larger than the sum of its proper divisors (22201120212019).

111005601060065 is an equidigital number, since it uses as much as digits as its factorization.

111005601060065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22201120212018.

The product of its (nonzero) digits is 5400, while the sum is 32.

Adding to 111005601060065 its reverse (560060106500111), we get a palindrome (671065707560176).

The spelling of 111005601060065 in words is "one hundred eleven trillion, five billion, six hundred one million, sixty thousand, sixty-five".