1530216660 has 96 divisors (see below), whose sum is σ = 4945312512. Its totient is φ = 346291200.

The previous prime is 1530216617. The next prime is 1530216679. The reversal of 1530216660 is 666120351.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24384 + ... + 60456.

It is an arithmetic number, because the mean of its divisors is an integer number (51513672).

Almost surely, 2^1530216660 is an apocalyptic number.

1530216660 is a gapful number since it is divisible by the number (10) 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 1530216660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2472656256).

1530216660 is an abundant number, since it is smaller than the sum of its proper divisors (3415095852).

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

1530216660 is a wasteful number, since it uses less digits than its factorization.

1530216660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36193 (or 36191 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1530216660 is about 39117.9838437515. The cubic root of 1530216660 is about 1152.3497412971.

The spelling of 1530216660 in words is "one billion, five hundred thirty million, two hundred sixteen thousand, six hundred sixty".