41661666 has 24 divisors (see below), whose sum is σ = 90480000. Its totient is φ = 13854456.

The previous prime is 41661649. The next prime is 41661673. The reversal of 41661666 is 66616614.

It is a self number, because there is not a number n which added to its sum of digits gives 41661666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5835 + ... + 10833.

It is an arithmetic number, because the mean of its divisors is an integer number (3770000).

Almost surely, 2^41661666 is an apocalyptic number.

41661666 is an abundant number, since it is smaller than the sum of its proper divisors (48818334).

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

41661666 is a wasteful number, since it uses less digits than its factorization.

41661666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5470 (or 5467 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 41661666 is about 6454.5848820819. The cubic root of 41661666 is about 346.6667675460. Note that the first 3 decimals are identical.

It can be divided in two parts, 4166 and 1666, that added together give a cube (5832 = 18³).

The spelling of 41661666 in words is "forty-one million, six hundred sixty-one thousand, six hundred sixty-six".