50666120816 has 40 divisors (see below), whose sum is σ = 104008280544. Its totient is φ = 23827230720.

The previous prime is 50666120809. The next prime is 50666120821. The reversal of 50666120816 is 61802166605.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359336 + ... + 480056.

Almost surely, 2^50666120816 is an apocalyptic number.

It is an amenable number.

50666120816 is an abundant number, since it is smaller than the sum of its proper divisors (53342159728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50666120816 is a wasteful number, since it uses less digits than its factorization.

50666120816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122289 (or 122283 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 50666120816 in words is "fifty billion, six hundred sixty-six million, one hundred twenty thousand, eight hundred sixteen".