50385271666 has 4 divisors (see below), whose sum is σ = 75577907502. Its totient is φ = 25192635832.

The previous prime is 50385271621. The next prime is 50385271681. The reversal of 50385271666 is 66617258305.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39509910441 + 10875361225 = 198771^2 + 104285^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12596317915 + ... + 12596317918.

Almost surely, 2^50385271666 is an apocalyptic number.

50385271666 is a deficient number, since it is larger than the sum of its proper divisors (25192635836).

50385271666 is a wasteful number, since it uses less digits than its factorization.

50385271666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25192635835.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 50385271666 in words is "fifty billion, three hundred eighty-five million, two hundred seventy-one thousand, six hundred sixty-six".