40666446239 has 8 divisors (see below), whose sum is σ = 41551281408. Its totient is φ = 39782427480.

The previous prime is 40666446229. The next prime is 40666446241. The reversal of 40666446239 is 93264466604.

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

It is a cyclic number.

It is not a de Polignac number, because 40666446239 - 2³² = 36371478943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40666446209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102857 + ... + 303170.

It is an arithmetic number, because the mean of its divisors is an integer number (5193910176).

Almost surely, 2^40666446239 is an apocalyptic number.

40666446239 is a deficient number, since it is larger than the sum of its proper divisors (884835169).

40666446239 is a wasteful number, since it uses less digits than its factorization.

40666446239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408205.

The product of its (nonzero) digits is 4478976, while the sum is 50.

The spelling of 40666446239 in words is "forty billion, six hundred sixty-six million, four hundred forty-six thousand, two hundred thirty-nine".