168222739888 has 40 divisors (see below), whose sum is σ = 373476135680. Its totient is φ = 71905216320.

The previous prime is 168222739849. The next prime is 168222739891. The reversal of 168222739888 is 888937222861.

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, 1939068 + ... + 2023963.

It is an arithmetic number, because the mean of its divisors is an integer number (9336903392).

Almost surely, 2^168222739888 is an apocalyptic number.

It is an amenable number.

168222739888 is an abundant number, since it is smaller than the sum of its proper divisors (205253395792).

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

168222739888 is a wasteful number, since it uses less digits than its factorization.

168222739888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3963425 (or 3963419 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 64.

The spelling of 168222739888 in words is "one hundred sixty-eight billion, two hundred twenty-two million, seven hundred thirty-nine thousand, eight hundred eighty-eight".