163465422120 has 384 divisors, whose sum is σ = 713305232640. Its totient is φ = 31353937920.

The previous prime is 163465422079. The next prime is 163465422143. The reversal of 163465422120 is 21224564361.

163465422120 is a `hidden beast` number, since 1 + 63 + 46 + 542 + 2 + 12 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 133552 + ... + 587168.

It is an arithmetic number, because the mean of its divisors is an integer number (1857565710).

Almost surely, 2^163465422120 is an apocalyptic number.

163465422120 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 163465422120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356652616320).

163465422120 is an abundant number, since it is smaller than the sum of its proper divisors (549839810520).

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

163465422120 is a wasteful number, since it uses less digits than its factorization.

163465422120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453665 (or 453658 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 163465422120 its reverse (21224564361), we get a palindrome (184689986481).

It can be divided in two parts, 163465 and 422120, that added together give a palindrome (585585).

The spelling of 163465422120 in words is "one hundred sixty-three billion, four hundred sixty-five million, four hundred twenty-two thousand, one hundred twenty".