505605055080 has 128 divisors (see below), whose sum is σ = 1527185664000. Its totient is φ = 133908648192.

The previous prime is 505605055079. The next prime is 505605055091. The reversal of 505605055080 is 80550506505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13425637 + ... + 13463243.

It is an arithmetic number, because the mean of its divisors is an integer number (11931138000).

Almost surely, 2^505605055080 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 505605055080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (763592832000).

505605055080 is an abundant number, since it is smaller than the sum of its proper divisors (1021580608920).

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

505605055080 is a wasteful number, since it uses less digits than its factorization.

505605055080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38383 (or 38379 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 39.

The spelling of 505605055080 in words is "five hundred five billion, six hundred five million, fifty-five thousand, eighty".