505545064320 has 192 divisors, whose sum is σ = 1711792335600. Its totient is φ = 126881759232.

The previous prime is 505545064313. The next prime is 505545064327. The reversal of 505545064320 is 23460545505.

It is an interprime number because it is at equal distance from previous prime (505545064313) and next prime (505545064327).

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505545064327) 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, 99336 + ... + 1010424.

Almost surely, 2^505545064320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505545064320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (855896167800).

505545064320 is an abundant number, since it is smaller than the sum of its proper divisors (1206247271280).

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

505545064320 is a wasteful number, since it uses less digits than its factorization.

505545064320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911145 (or 911116 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 39.

The spelling of 505545064320 in words is "five hundred five billion, five hundred forty-five million, sixty-four thousand, three hundred twenty".