50003405666 has 16 divisors (see below), whose sum is σ = 77646508800. Its totient is φ = 24125858640.

The previous prime is 50003405663. The next prime is 50003405677. The reversal of 50003405666 is 66650430005.

It is not an unprimeable number, because it can be changed into a prime (50003405663) 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, 1133816 + ... + 1177091.

It is an arithmetic number, because the mean of its divisors is an integer number (4852906800).

Almost surely, 2^50003405666 is an apocalyptic number.

50003405666 is a deficient number, since it is larger than the sum of its proper divisors (27643103134).

50003405666 is a wasteful number, since it uses less digits than its factorization.

50003405666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311289.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 50003405666 in words is "fifty billion, three million, four hundred five thousand, six hundred sixty-six".