163647480 has 64 divisors (see below), whose sum is σ = 494524800. Its totient is φ = 43320960.

The previous prime is 163647469. The next prime is 163647487. The reversal of 163647480 is 84746361.

163647480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×163647480³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163647487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11775 + ... + 21585.

It is an arithmetic number, because the mean of its divisors is an integer number (7726950).

Almost surely, 2^163647480 is an apocalyptic number.

163647480 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 163647480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247262400).

163647480 is an abundant number, since it is smaller than the sum of its proper divisors (330877320).

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

163647480 is a wasteful number, since it uses less digits than its factorization.

163647480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9964 (or 9960 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 163647480 is about 12792.4774770175. The cubic root of 163647480 is about 546.9778930425.

The spelling of 163647480 in words is "one hundred sixty-three million, six hundred forty-seven thousand, four hundred eighty".