168222839064 has 128 divisors (see below), whose sum is σ = 496685882880. Its totient is φ = 46480896000.

The previous prime is 168222839047. The next prime is 168222839111. The reversal of 168222839064 is 460938222861.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 168222838998 and 168222839016.

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, 614344 + ... + 844904.

It is an arithmetic number, because the mean of its divisors is an integer number (3880358460).

Almost surely, 2^168222839064 is an apocalyptic number.

168222839064 is a gapful number since it is divisible by the number (14) 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 168222839064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248342941440).

168222839064 is an abundant number, since it is smaller than the sum of its proper divisors (328463043816).

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

168222839064 is a wasteful number, since it uses less digits than its factorization.

168222839064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230721 (or 230717 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 51.

The spelling of 168222839064 in words is "one hundred sixty-eight billion, two hundred twenty-two million, eight hundred thirty-nine thousand, sixty-four".