118656666 has 12 divisors (see below), whose sum is σ = 257089482. Its totient is φ = 39552216.

The previous prime is 118656647. The next prime is 118656679. The reversal of 118656666 is 666656811.

It can be written as a sum of positive squares in only one way, i.e., 95472441 + 23184225 = 9771^2 + 4815^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3296001 + ... + 3296036.

Almost surely, 2^118656666 is an apocalyptic number.

118656666 is an abundant number, since it is smaller than the sum of its proper divisors (138432816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118656666 is a wasteful number, since it uses less digits than its factorization.

118656666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6592045 (or 6592042 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 118656666 is about 10892.9640594285. The cubic root of 118656666 is about 491.3949780904.

The spelling of 118656666 in words is "one hundred eighteen million, six hundred fifty-six thousand, six hundred sixty-six".