130666788 has 72 divisors (see below), whose sum is σ = 382706688. Its totient is φ = 36816768.

The previous prime is 130666763. The next prime is 130666801. The reversal of 130666788 is 887666031.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14845 + ... + 21947.

Almost surely, 2^130666788 is an apocalyptic number.

130666788 is a gapful number since it is divisible by the number (18) 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 130666788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191353344).

130666788 is an abundant number, since it is smaller than the sum of its proper divisors (252039900).

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

130666788 is a wasteful number, since it uses less digits than its factorization.

130666788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7193 (or 7188 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 130666788 is about 11430.9574402147. The cubic root of 130666788 is about 507.4443311340. Note that the first 3 decimals are identical.

The spelling of 130666788 in words is "one hundred thirty million, six hundred sixty-six thousand, seven hundred eighty-eight".