168222891354 has 32 divisors (see below), whose sum is σ = 391764366720. Its totient is φ = 47156820672.

The previous prime is 168222891313. The next prime is 168222891359. The reversal of 168222891354 is 453198222861.

It is a junction number, because it is equal to n+sod(n) for n = 168222891297 and 168222891306.

It is not an unprimeable number, because it can be changed into a prime (168222891359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37783689 + ... + 37788140.

It is an arithmetic number, because the mean of its divisors is an integer number (12242636460).

Almost surely, 2^168222891354 is an apocalyptic number.

168222891354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

168222891354 is an abundant number, since it is smaller than the sum of its proper divisors (223541475366).

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

168222891354 is a wasteful number, since it uses less digits than its factorization.

168222891354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75571894.

The product of its digits is 1658880, while the sum is 51.

The spelling of 168222891354 in words is "one hundred sixty-eight billion, two hundred twenty-two million, eight hundred ninety-one thousand, three hundred fifty-four".