41618666 has 8 divisors (see below), whose sum is σ = 63046404. Its totient is φ = 20603200.

The previous prime is 41618663. The next prime is 41618719. The reversal of 41618666 is 66681614.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 31192225 + 10426441 = 5585^2 + 3229^2 .

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

It is a super-2 number, since 2×41618666² = 3464226719239112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (41618663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102815 + ... + 103218.

Almost surely, 2^41618666 is an apocalyptic number.

41618666 is a deficient number, since it is larger than the sum of its proper divisors (21427738).

41618666 is a wasteful number, since it uses less digits than its factorization.

41618666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206136.

The product of its digits is 41472, while the sum is 38.

The square root of 41618666 is about 6451.2530565775. The cubic root of 41618666 is about 346.5474588074.

The spelling of 41618666 in words is "forty-one million, six hundred eighteen thousand, six hundred sixty-six".