130505664 has 56 divisors (see below), whose sum is σ = 347380560. Its totient is φ = 43239424.

The previous prime is 130505647. The next prime is 130505671. The reversal of 130505664 is 466505031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31252 + ... + 35180.

Almost surely, 2^130505664 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 130505664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173690280).

130505664 is an abundant number, since it is smaller than the sum of its proper divisors (216874896).

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

130505664 is a wasteful number, since it uses less digits than its factorization.

130505664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4117 (or 4107 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 130505664 is about 11423.9075626512. The cubic root of 130505664 is about 507.2356703842.

The spelling of 130505664 in words is "one hundred thirty million, five hundred five thousand, six hundred sixty-four".