50996495661 has 4 divisors (see below), whose sum is σ = 67995327552. Its totient is φ = 33997663772.

The previous prime is 50996495629. The next prime is 50996495663. The reversal of 50996495661 is 16659469905.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50996495661 - 2⁵ = 50996495629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50996495595 and 50996495604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50996495663) 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, 8499415941 + ... + 8499415946.

It is an arithmetic number, because the mean of its divisors is an integer number (16998831888).

Almost surely, 2^50996495661 is an apocalyptic number.

It is an amenable number.

50996495661 is a deficient number, since it is larger than the sum of its proper divisors (16998831891).

50996495661 is a wasteful number, since it uses less digits than its factorization.

50996495661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16998831890.

The product of its (nonzero) digits is 15746400, while the sum is 60.

The spelling of 50996495661 in words is "fifty billion, nine hundred ninety-six million, four hundred ninety-five thousand, six hundred sixty-one".