505056660612 has 144 divisors (see below), whose sum is σ = 1460908431360. Its totient is φ = 135090973248.

The previous prime is 505056660587. The next prime is 505056660623. The reversal of 505056660612 is 216066650505.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 238339 + ... + 1032917.

It is an arithmetic number, because the mean of its divisors is an integer number (10145197440).

Almost surely, 2^505056660612 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 505056660612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (730454215680).

505056660612 is an abundant number, since it is smaller than the sum of its proper divisors (955851770748).

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

505056660612 is a wasteful number, since it uses less digits than its factorization.

505056660612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794670 (or 794661 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 505056660612 in words is "five hundred five billion, fifty-six million, six hundred sixty thousand, six hundred twelve".