130188185856 has 81 divisors (see below), whose sum is σ = 375414576901. Its totient is φ = 43390288896.

The previous prime is 130188185837. The next prime is 130188185863. The reversal of 130188185856 is 658581881031.

The square root of 130188185856 is 360816.

It is a perfect power (a square), and thus also a powerful number.

130188185856 is a `hidden beast` number, since 1 + 30 + 18 + 8 + 18 + 585 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 121940640000 + 8247545856 = 349200^2 + 90816^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17315410 + ... + 17322926.

Almost surely, 2^130188185856 is an apocalyptic number.

130188185856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

130188185856 is the 360816-th square number.

It is an amenable number.

130188185856 is an abundant number, since it is smaller than the sum of its proper divisors (245226391045).

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

130188185856 is an frugal number, since it uses more digits than its factorization.

130188185856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15056 (or 7522 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 54.

The spelling of 130188185856 in words is "one hundred thirty billion, one hundred eighty-eight million, one hundred eighty-five thousand, eight hundred fifty-six".