111682814065 has 4 divisors (see below), whose sum is σ = 134019376884. Its totient is φ = 89346251248.

The previous prime is 111682813997. The next prime is 111682814107. The reversal of 111682814065 is 560418286111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560418286111 = 19 ⋅29495699269.

It can be written as a sum of positive squares in 2 ways, for example, as 17005985649 + 94676828416 = 130407^2 + 307696^2 .

It is a cyclic number.

It is not a de Polignac number, because 111682814065 - 2¹⁹ = 111682289777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11168281402 + ... + 11168281411.

It is an arithmetic number, because the mean of its divisors is an integer number (33504844221).

Almost surely, 2^111682814065 is an apocalyptic number.

It is an amenable number.

111682814065 is a deficient number, since it is larger than the sum of its proper divisors (22336562819).

111682814065 is an equidigital number, since it uses as much as digits as its factorization.

111682814065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22336562818.

The product of its (nonzero) digits is 92160, while the sum is 43.

The spelling of 111682814065 in words is "one hundred eleven billion, six hundred eighty-two million, eight hundred fourteen thousand, sixty-five".