50061644663 has 4 divisors (see below), whose sum is σ = 50421800520. Its totient is φ = 49701488808.

The previous prime is 50061644641. The next prime is 50061644669. The reversal of 50061644663 is 36644616005.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50061644663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50061644663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50061644669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180077720 + ... + 180077997.

It is an arithmetic number, because the mean of its divisors is an integer number (12605450130).

Almost surely, 2^50061644663 is an apocalyptic number.

50061644663 is a deficient number, since it is larger than the sum of its proper divisors (360155857).

50061644663 is a wasteful number, since it uses less digits than its factorization.

50061644663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360155856.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 50061644663 in words is "fifty billion, sixty-one million, six hundred forty-four thousand, six hundred sixty-three".