111381735106686 has 32 divisors (see below), whose sum is σ = 243015190322688. Its totient is φ = 33751972115840.

The previous prime is 111381735106661. The next prime is 111381735106687. The reversal of 111381735106686 is 686601537183111.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111381735106687) 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, 37671766 + ... + 40520678.

It is an arithmetic number, because the mean of its divisors is an integer number (7594224697584).

Almost surely, 2^{111381735106686} is an apocalyptic number.

111381735106686 is an abundant number, since it is smaller than the sum of its proper divisors (131633455216002).

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

111381735106686 is a wasteful number, since it uses less digits than its factorization.

111381735106686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441296.

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 111381735106686 in words is "one hundred eleven trillion, three hundred eighty-one billion, seven hundred thirty-five million, one hundred six thousand, six hundred eighty-six".