2405850666 has 16 divisors (see below), whose sum is σ = 4966917888. Its totient is φ = 776080800.

The previous prime is 2405850641. The next prime is 2405850679. The reversal of 2405850666 is 6660585042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6467155 + ... + 6467526.

It is an arithmetic number, because the mean of its divisors is an integer number (310432368).

Almost surely, 2^2405850666 is an apocalyptic number.

2405850666 is an abundant number, since it is smaller than the sum of its proper divisors (2561067222).

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

2405850666 is a wasteful number, since it uses less digits than its factorization.

2405850666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12934717.

The product of its (nonzero) digits is 345600, while the sum is 42.

The square root of 2405850666 is about 49049.4716179492. The cubic root of 2405850666 is about 1339.9529696867.

The spelling of 2405850666 in words is "two billion, four hundred five million, eight hundred fifty thousand, six hundred sixty-six".