168020860 has 96 divisors (see below), whose sum is σ = 430230528. Its totient is φ = 53806080.

The previous prime is 168020821. The next prime is 168020903. The reversal of 168020860 is 68020861.

168020860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 540105 + ... + 540415.

It is an arithmetic number, because the mean of its divisors is an integer number (4481568).

Almost surely, 2^168020860 is an apocalyptic number.

168020860 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 168020860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215115264).

168020860 is an abundant number, since it is smaller than the sum of its proper divisors (262209668).

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

168020860 is a wasteful number, since it uses less digits than its factorization.

168020860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 168020860 is about 12962.2860638083. The cubic root of 168020860 is about 551.8076720923.

Subtracting from 168020860 its reverse (68020861), we obtain a palindrome (99999999).

The spelling of 168020860 in words is "one hundred sixty-eight million, twenty thousand, eight hundred sixty".