168236303380 has 24 divisors (see below), whose sum is σ = 374078369448. Its totient is φ = 63336019968.

The previous prime is 168236303357. The next prime is 168236303387. The reversal of 168236303380 is 83303632861.

It can be written as a sum of positive squares in 4 ways, for example, as 17509111684 + 150727191696 = 132322^2 + 388236^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168236303387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247405989 + ... + 247406668.

It is an arithmetic number, because the mean of its divisors is an integer number (15586598727).

Almost surely, 2^168236303380 is an apocalyptic number.

168236303380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168236303380 is an abundant number, since it is smaller than the sum of its proper divisors (205842066068).

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

168236303380 is a wasteful number, since it uses less digits than its factorization.

168236303380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494812683 (or 494812681 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 168236303380 in words is "one hundred sixty-eight billion, two hundred thirty-six million, three hundred three thousand, three hundred eighty".