111605646342 has 16 divisors (see below), whose sum is σ = 223218838080. Its totient is φ = 37200624552.

The previous prime is 111605646337. The next prime is 111605646343. The reversal of 111605646342 is 243646506111.

It is a self number, because there is not a number n which added to its sum of digits gives 111605646342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111605646343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112092 + ... + 485567.

It is an arithmetic number, because the mean of its divisors is an integer number (13951177380).

Almost surely, 2^111605646342 is an apocalyptic number.

111605646342 is an abundant number, since it is smaller than the sum of its proper divisors (111613191738).

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

111605646342 is a wasteful number, since it uses less digits than its factorization.

111605646342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628787.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 111605646342 in words is "one hundred eleven billion, six hundred five million, six hundred forty-six thousand, three hundred forty-two".