111400666 has 8 divisors (see below), whose sum is σ = 179954964. Its totient is φ = 51415680.

The previous prime is 111400657. The next prime is 111400693. The reversal of 111400666 is 666004111.

It can be written as a sum of positive squares in 2 ways, for example, as 100701225 + 10699441 = 10035^2 + 3271^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 111400666.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2142295 + ... + 2142346.

Almost surely, 2^111400666 is an apocalyptic number.

111400666 is a deficient number, since it is larger than the sum of its proper divisors (68554298).

111400666 is a wasteful number, since it uses less digits than its factorization.

111400666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4284656.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 111400666 is about 10554.6513916851. The cubic root of 111400666 is about 481.1671049441.

Adding to 111400666 its reverse (666004111), we get a palindrome (777404777).

The spelling of 111400666 in words is "one hundred eleven million, four hundred thousand, six hundred sixty-six".