130168220 has 96 divisors (see below), whose sum is σ = 345706368. Its totient is φ = 40061952.

The previous prime is 130168193. The next prime is 130168223. The reversal of 130168220 is 22861031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130168223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66374 + ... + 68306.

It is an arithmetic number, because the mean of its divisors is an integer number (3601108).

Almost surely, 2^130168220 is an apocalyptic number.

130168220 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 130168220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172853184).

130168220 is an abundant number, since it is smaller than the sum of its proper divisors (215538148).

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

130168220 is a wasteful number, since it uses less digits than its factorization.

130168220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999 (or 1997 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 130168220 is about 11409.1288010961. The cubic root of 130168220 is about 506.7981124408.

The spelling of 130168220 in words is "one hundred thirty million, one hundred sixty-eight thousand, two hundred twenty".