505047216500000 has 168 divisors, whose sum is σ = 1244201318941140. Its totient is φ = 201803097600000.

The previous prime is 505047216499979. The next prime is 505047216500059. The reversal of 505047216500000 is 5612740505.

It can be written as a sum of positive squares in 14 ways, for example, as 498253290841744 + 6793925658256 = 22321588^2 + 2606516^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 467960996 + ... + 469039004.

Almost surely, 2^{505047216500000} is an apocalyptic number.

505047216500000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505047216500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622100659470570).

505047216500000 is an abundant number, since it is smaller than the sum of its proper divisors (739154102441140).

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

505047216500000 is an frugal number, since it uses more digits than its factorization.

505047216500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078986 (or 1078953 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The spelling of 505047216500000 in words is "five hundred five trillion, forty-seven billion, two hundred sixteen million, five hundred thousand".