66240006 has 16 divisors (see below), whose sum is σ = 151405824. Its totient is φ = 18925704.

The previous prime is 66240001. The next prime is 66240017. The reversal of 66240006 is 60004266.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66240001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 788530 + ... + 788613.

It is an arithmetic number, because the mean of its divisors is an integer number (9462864).

Almost surely, 2^66240006 is an apocalyptic number.

66240006 is an abundant number, since it is smaller than the sum of its proper divisors (85165818).

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

66240006 is a wasteful number, since it uses less digits than its factorization.

66240006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577155.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 66240006 is about 8138.7963483552. The cubic root of 66240006 is about 404.6132689964.

The spelling of 66240006 in words is "sixty-six million, two hundred forty thousand, six".