505211214320 has 20 divisors (see below), whose sum is σ = 1174616073480. Its totient is φ = 202084485696.

The previous prime is 505211214307. The next prime is 505211214329. The reversal of 505211214320 is 23412112505.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 505211214320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505211214329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3157570010 + ... + 3157570169.

It is an arithmetic number, because the mean of its divisors is an integer number (58730803674).

Almost surely, 2^505211214320 is an apocalyptic number.

It is an amenable number.

505211214320 is an abundant number, since it is smaller than the sum of its proper divisors (669404859160).

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

505211214320 is a wasteful number, since it uses less digits than its factorization.

505211214320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6315140192 (or 6315140186 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 505211214320 its reverse (23412112505), we get a palindrome (528623326825).

The spelling of 505211214320 in words is "five hundred five billion, two hundred eleven million, two hundred fourteen thousand, three hundred twenty".