50666521633 has 16 divisors (see below), whose sum is σ = 62369314560. Its totient is φ = 40081035456.

The previous prime is 50666521621. The next prime is 50666521637. The reversal of 50666521633 is 33612566605.

It is a de Polignac number, because none of the positive numbers 2^k-50666521633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50666521633.

It is not an unprimeable number, because it can be changed into a prime (50666521637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534891 + ... + 622447.

It is an arithmetic number, because the mean of its divisors is an integer number (3898082160).

Almost surely, 2^50666521633 is an apocalyptic number.

It is an amenable number.

50666521633 is a deficient number, since it is larger than the sum of its proper divisors (11702792927).

50666521633 is a wasteful number, since it uses less digits than its factorization.

50666521633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93936.

The product of its (nonzero) digits is 583200, while the sum is 43.

The spelling of 50666521633 in words is "fifty billion, six hundred sixty-six million, five hundred twenty-one thousand, six hundred thirty-three".