163222565000 has 160 divisors (see below), whose sum is σ = 421341877440. Its totient is φ = 58764000000.

The previous prime is 163222564979. The next prime is 163222565017. The reversal of 163222565000 is 565222361.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5540309 + ... + 5569691.

It is an arithmetic number, because the mean of its divisors is an integer number (2633386734).

Almost surely, 2^163222565000 is an apocalyptic number.

163222565000 is a gapful number since it is divisible by the number (10) 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 163222565000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210670938720).

163222565000 is an abundant number, since it is smaller than the sum of its proper divisors (258119312440).

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

163222565000 is a wasteful number, since it uses less digits than its factorization.

163222565000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29521 (or 29502 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 163222565000 its reverse (565222361), we get a palindrome (163787787361).

The spelling of 163222565000 in words is "one hundred sixty-three billion, two hundred twenty-two million, five hundred sixty-five thousand".