163422339912 has 240 divisors, whose sum is σ = 501530738940. Its totient is φ = 49422659328.

The previous prime is 163422339881. The next prime is 163422339937. The reversal of 163422339912 is 219933224361.

163422339912 is a `hidden beast` number, since 1 + 6 + 34 + 223 + 399 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 128088115236 + 35334224676 = 357894^2 + 187974^2 .

It is a super-2 number, since 2×163422339912² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 29321158 + ... + 29326730.

Almost surely, 2^163422339912 is an apocalyptic number.

163422339912 is a gapful number since it is divisible by the number (12) 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 163422339912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250765369470).

163422339912 is an abundant number, since it is smaller than the sum of its proper divisors (338108399028).

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

163422339912 is a wasteful number, since it uses less digits than its factorization.

163422339912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722 (or 5650 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The spelling of 163422339912 in words is "one hundred sixty-three billion, four hundred twenty-two million, three hundred thirty-nine thousand, nine hundred twelve".