505546515460 has 144 divisors (see below), whose sum is σ = 1299652228224. Its totient is φ = 161755646976.

The previous prime is 505546515437. The next prime is 505546515541. The reversal of 505546515460 is 64515645505.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 505546515460.

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 47 ways as a sum of consecutive naturals, for example, 3311532 + ... + 3460828.

It is an arithmetic number, because the mean of its divisors is an integer number (9025362696).

Almost surely, 2^505546515460 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 505546515460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (649826114112).

505546515460 is an abundant number, since it is smaller than the sum of its proper divisors (794105712764).

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

505546515460 is a wasteful number, since it uses less digits than its factorization.

505546515460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149418 (or 149397 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 46.

The spelling of 505546515460 in words is "five hundred five billion, five hundred forty-six million, five hundred fifteen thousand, four hundred sixty".