1118666 has 8 divisors (see below), whose sum is σ = 1732224. Its totient is φ = 541260.

The previous prime is 1118659. The next prime is 1118713. The reversal of 1118666 is 6668111.

1118666 = T₂₅₃ + T₂₅₄ + ... + T₂₈₃.

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

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, 8960 + ... + 9083.

It is an arithmetic number, because the mean of its divisors is an integer number (216528).

2^1118666 is an apocalyptic number.

1118666 is a deficient number, since it is larger than the sum of its proper divisors (613558).

1118666 is a wasteful number, since it uses less digits than its factorization.

1118666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18076.

The product of its digits is 1728, while the sum is 29.

The square root of 1118666 is about 1057.6700808853. The cubic root of 1118666 is about 103.8086347808.

The spelling of 1118666 in words is "one million, one hundred eighteen thousand, six hundred sixty-six".