111604516065 has 48 divisors (see below), whose sum is σ = 230801189760. Its totient is φ = 51019204320.

The previous prime is 111604516063. The next prime is 111604516097. The reversal of 111604516065 is 560615406111.

111604516065 is a `hidden beast` number, since 1 + 1 + 1 + 6 + 0 + 45 + 1 + 606 + 5 = 666.

It is not a de Polignac number, because 111604516065 - 2¹ = 111604516063 is a prime.

It is a super-2 number, since 2×111604516065² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111604516063) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 8429101 + ... + 8442330.

It is an arithmetic number, because the mean of its divisors is an integer number (4808358120).

Almost surely, 2^111604516065 is an apocalyptic number.

111604516065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111604516065 is an abundant number, since it is smaller than the sum of its proper divisors (119196673695).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111604516065 is a wasteful number, since it uses less digits than its factorization.

111604516065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16871459 (or 16871446 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 111604516065 in words is "one hundred eleven billion, six hundred four million, five hundred sixteen thousand, sixty-five".