505533344536 has 64 divisors (see below), whose sum is σ = 1080361255680. Its totient is φ = 219520625280.

The previous prime is 505533344531. The next prime is 505533344549. The reversal of 505533344536 is 635443335505.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505533344531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1456435 + ... + 1769821.

It is an arithmetic number, because the mean of its divisors is an integer number (16880644620).

Almost surely, 2^505533344536 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 505533344536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540180627840).

505533344536 is an abundant number, since it is smaller than the sum of its proper divisors (574827911144).

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

505533344536 is a wasteful number, since it uses less digits than its factorization.

505533344536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314224 (or 314220 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 46.

The spelling of 505533344536 in words is "five hundred five billion, five hundred thirty-three million, three hundred forty-four thousand, five hundred thirty-six".