550221699708 has 72 divisors (see below), whose sum is σ = 1451457466368. Its totient is φ = 175415109408.

The previous prime is 550221699707. The next prime is 550221699743. The reversal of 550221699708 is 807996122055.

550221699708 is a `hidden beast` number, since 5 + 502 + 2 + 1 + 69 + 9 + 70 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550221699707) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9814485 + ... + 9870387.

Almost surely, 2^550221699708 is an apocalyptic number.

It is an amenable number.

550221699708 is an abundant number, since it is smaller than the sum of its proper divisors (901235766660).

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

550221699708 is a wasteful number, since it uses less digits than its factorization.

550221699708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67823 (or 67818 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 550221699708 in words is "five hundred fifty billion, two hundred twenty-one million, six hundred ninety-nine thousand, seven hundred eight".