111481666 has 8 divisors (see below), whose sum is σ = 171742140. Its totient is φ = 54234288.

The previous prime is 111481649. The next prime is 111481681. The reversal of 111481666 is 666184111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 83338641 + 28143025 = 9129^2 + 5305^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753181 + ... + 753328.

Almost surely, 2^111481666 is an apocalyptic number.

111481666 is a deficient number, since it is larger than the sum of its proper divisors (60260474).

111481666 is a wasteful number, since it uses less digits than its factorization.

111481666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506548.

The product of its digits is 6912, while the sum is 34.

The square root of 111481666 is about 10558.4878652201. The cubic root of 111481666 is about 481.2836963869.

The spelling of 111481666 in words is "one hundred eleven million, four hundred eighty-one thousand, six hundred sixty-six".