111540340465 has 16 divisors (see below), whose sum is σ = 140930798400. Its totient is φ = 84513195072.

The previous prime is 111540340459. The next prime is 111540340487. The reversal of 111540340465 is 564043045111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111540340465 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111540340465.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203659 + ... + 514351.

It is an arithmetic number, because the mean of its divisors is an integer number (8808174900).

Almost surely, 2^111540340465 is an apocalyptic number.

It is an amenable number.

111540340465 is a deficient number, since it is larger than the sum of its proper divisors (29390457935).

111540340465 is a wasteful number, since it uses less digits than its factorization.

111540340465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314496.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 111540340465 its reverse (564043045111), we get a palindrome (675583385576).

The spelling of 111540340465 in words is "one hundred eleven billion, five hundred forty million, three hundred forty thousand, four hundred sixty-five".