111156664321774 has 16 divisors (see below), whose sum is σ = 167134166747136. Its totient is φ = 55445294410200.

The previous prime is 111156664321741. The next prime is 111156664321819. The reversal of 111156664321774 is 477123466651111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6971419 + ... + 16459465.

It is an arithmetic number, because the mean of its divisors is an integer number (10445885421696).

Almost surely, 2^{111156664321774} is an apocalyptic number.

111156664321774 is a deficient number, since it is larger than the sum of its proper divisors (55977502425362).

111156664321774 is a wasteful number, since it uses less digits than its factorization.

111156664321774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9502071.

The product of its digits is 5080320, while the sum is 55.

The spelling of 111156664321774 in words is "one hundred eleven trillion, one hundred fifty-six billion, six hundred sixty-four million, three hundred twenty-one thousand, seven hundred seventy-four".