163317012480 has 384 divisors, whose sum is σ = 600589080000. Its totient is φ = 42047373312.

The previous prime is 163317012449. The next prime is 163317012487. The reversal of 163317012480 is 84210713361.

It is a happy number.

163317012480 is a `hidden beast` number, since 1 + 6 + 3 + 3 + 170 + 1 + 2 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163317012487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8007736 + ... + 8028104.

Almost surely, 2^163317012480 is an apocalyptic number.

163317012480 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 163317012480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300294540000).

163317012480 is an abundant number, since it is smaller than the sum of its proper divisors (437272067520).

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

163317012480 is a wasteful number, since it uses less digits than its factorization.

163317012480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20434 (or 20408 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 163317012480 in words is "one hundred sixty-three billion, three hundred seventeen million, twelve thousand, four hundred eighty".