111765012116 has 6 divisors (see below), whose sum is σ = 195588771210. Its totient is φ = 55882506056.

The previous prime is 111765012091. The next prime is 111765012127. The reversal of 111765012116 is 611210567111.

It can be written as a sum of positive squares in only one way, i.e., 64819123216 + 46945888900 = 254596^2 + 216670^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 13970626511 + ... + 13970626518.

It is an arithmetic number, because the mean of its divisors is an integer number (32598128535).

Almost surely, 2^111765012116 is an apocalyptic number.

It is an amenable number.

111765012116 is a deficient number, since it is larger than the sum of its proper divisors (83823759094).

111765012116 is a wasteful number, since it uses less digits than its factorization.

111765012116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27941253033 (or 27941253031 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 32.

Adding to 111765012116 its reverse (611210567111), we get a palindrome (722975579227).

The spelling of 111765012116 in words is "one hundred eleven billion, seven hundred sixty-five million, twelve thousand, one hundred sixteen".