111666363 has 16 divisors (see below), whose sum is σ = 157324800. Its totient is φ = 70256160.

The previous prime is 111666361. The next prime is 111666367. The reversal of 111666363 is 363666111.

It is not a de Polignac number, because 111666363 - 2¹ = 111666361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111666361) 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 15 ways as a sum of consecutive naturals, for example, 11833 + ... + 19061.

It is an arithmetic number, because the mean of its divisors is an integer number (9832800).

Almost surely, 2^111666363 is an apocalyptic number.

111666363 is a deficient number, since it is larger than the sum of its proper divisors (45658437).

111666363 is a wasteful number, since it uses less digits than its factorization.

111666363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7522.

The product of its digits is 11664, while the sum is 33.

The square root of 111666363 is about 10567.2306211230. The cubic root of 111666363 is about 481.5493383016.

The spelling of 111666363 in words is "one hundred eleven million, six hundred sixty-six thousand, three hundred sixty-three".