130320660 has 96 divisors (see below), whose sum is σ = 383040000. Its totient is φ = 33067008.

The previous prime is 130320649. The next prime is 130320667. The reversal of 130320660 is 66023031.

It is a super-4 number, since 4×130320660⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130320667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103716 + ... + 104964.

It is an arithmetic number, because the mean of its divisors is an integer number (3990000).

Almost surely, 2^130320660 is an apocalyptic number.

130320660 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 130320660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191520000).

130320660 is an abundant number, since it is smaller than the sum of its proper divisors (252719340).

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

130320660 is a wasteful number, since it uses less digits than its factorization.

130320660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 130320660 is about 11415.8074615859. The cubic root of 130320660 is about 506.9958723487.

Adding to 130320660 its reverse (66023031), we get a palindrome (196343691).

The spelling of 130320660 in words is "one hundred thirty million, three hundred twenty thousand, six hundred sixty".