111765385983 has 16 divisors (see below), whose sum is σ = 154180454400. Its totient is φ = 71930997600.

The previous prime is 111765385967. The next prime is 111765385993. The reversal of 111765385983 is 389583567111.

It is a happy number.

It is not a de Polignac number, because 111765385983 - 2⁴ = 111765385967 is a prime.

It is a super-3 number, since 3×111765385983³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111765385933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 572658 + ... + 742608.

It is an arithmetic number, because the mean of its divisors is an integer number (9636278400).

Almost surely, 2^111765385983 is an apocalyptic number.

111765385983 is a deficient number, since it is larger than the sum of its proper divisors (42415068417).

111765385983 is a wasteful number, since it uses less digits than its factorization.

111765385983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177542.

The product of its digits is 5443200, while the sum is 57.

The spelling of 111765385983 in words is "one hundred eleven billion, seven hundred sixty-five million, three hundred eighty-five thousand, nine hundred eighty-three".