50385271665 has 16 divisors (see below), whose sum is σ = 82582690176. Its totient is φ = 26216726400.

The previous prime is 50385271621. The next prime is 50385271681. The reversal of 50385271665 is 56617258305.

It is not a de Polignac number, because 50385271665 - 2⁷ = 50385271537 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40963021 + ... + 40964250.

It is an arithmetic number, because the mean of its divisors is an integer number (5161418136).

Almost surely, 2^50385271665 is an apocalyptic number.

It is an amenable number.

50385271665 is a deficient number, since it is larger than the sum of its proper divisors (32197418511).

50385271665 is a wasteful number, since it uses less digits than its factorization.

50385271665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81927320.

The product of its (nonzero) digits is 1512000, while the sum is 48.

The spelling of 50385271665 in words is "fifty billion, three hundred eighty-five million, two hundred seventy-one thousand, six hundred sixty-five".