1330505216 has 40 divisors (see below), whose sum is σ = 2708625744. Its totient is φ = 652687360.

The previous prime is 1330505203. The next prime is 1330505249. The reversal of 1330505216 is 6125050331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2621 + ... + 51651.

Almost surely, 2^1330505216 is an apocalyptic number.

1330505216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1330505216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1354312872).

1330505216 is an abundant number, since it is smaller than the sum of its proper divisors (1378120528).

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

1330505216 is an frugal number, since it uses more digits than its factorization.

1330505216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49102 (or 49086 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1330505216 is about 36476.0910186385. The cubic root of 1330505216 is about 1099.8636789744.

Adding to 1330505216 its reverse (6125050331), we get a palindrome (7455555547).

The spelling of 1330505216 in words is "one billion, three hundred thirty million, five hundred five thousand, two hundred sixteen".