168301980 has 144 divisors (see below), whose sum is σ = 636539904. Its totient is φ = 34968960.

The previous prime is 168301979. The next prime is 168302003. The reversal of 168301980 is 89103861.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7789 + ... + 19931.

It is an arithmetic number, because the mean of its divisors is an integer number (4420416).

Almost surely, 2^168301980 is an apocalyptic number.

168301980 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 168301980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318269952).

168301980 is an abundant number, since it is smaller than the sum of its proper divisors (468237924).

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

168301980 is a wasteful number, since it uses less digits than its factorization.

168301980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12176 (or 12171 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 168301980 is about 12973.1252980922. The cubic root of 168301980 is about 552.1152484631.

The spelling of 168301980 in words is "one hundred sixty-eight million, three hundred one thousand, nine hundred eighty".