168084220338 has 16 divisors (see below), whose sum is σ = 373520489760. Its totient is φ = 56028073428.

The previous prime is 168084220307. The next prime is 168084220349. The reversal of 168084220338 is 833022480861.

168084220338 is a `hidden beast` number, since 16 + 8 + 0 + 84 + 220 + 338 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 168084220293 and 168084220302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1556335320 + ... + 1556335427.

It is an arithmetic number, because the mean of its divisors is an integer number (23345030610).

Almost surely, 2^168084220338 is an apocalyptic number.

168084220338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

168084220338 is an abundant number, since it is smaller than the sum of its proper divisors (205436269422).

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

168084220338 is a wasteful number, since it uses less digits than its factorization.

168084220338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112670758 (or 3112670752 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 168084220338 in words is "one hundred sixty-eight billion, eighty-four million, two hundred twenty thousand, three hundred thirty-eight".