168832978930900 has 72 divisors (see below), whose sum is σ = 380444501102904. Its totient is φ = 64983491942400.

The previous prime is 168832978930883. The next prime is 168832978930949. The reversal of 168832978930900 is 9039879238861.

It can be written as a sum of positive squares in 12 ways, for example, as 39082927669956 + 129750051260944 = 6251634^2 + 11390788^2 .

It is a Harshad number since it is a multiple of its sum of digits (73).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 281747107 + ... + 282345706.

It is an arithmetic number, because the mean of its divisors is an integer number (5283951404207).

Almost surely, 2^{168832978930900} is an apocalyptic number.

168832978930900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168832978930900 is an abundant number, since it is smaller than the sum of its proper divisors (211611522172004).

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

168832978930900 is a wasteful number, since it uses less digits than its factorization.

168832978930900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564092941 (or 564092934 counting only the distinct ones).

The product of its (nonzero) digits is 282175488, while the sum is 73.

The spelling of 168832978930900 in words is "one hundred sixty-eight trillion, eight hundred thirty-two billion, nine hundred seventy-eight million, nine hundred thirty thousand, nine hundred".