163457647488 has 384 divisors, whose sum is σ = 498363946080. Its totient is φ = 53317730304.

The previous prime is 163457647433. The next prime is 163457647499. The reversal of 163457647488 is 884746754361.

163457647488 is a `hidden beast` number, since 1 + 6 + 3 + 45 + 76 + 47 + 488 = 666.

163457647488 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×163457647488³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 438224070 + ... + 438224442.

Almost surely, 2^163457647488 is an apocalyptic number.

163457647488 is a gapful number since it is divisible by the number (18) 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 163457647488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249181973040).

163457647488 is an abundant number, since it is smaller than the sum of its proper divisors (334906298592).

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

163457647488 is an equidigital number, since it uses as much as digits as its factorization.

163457647488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 644 counting only the distinct ones).

The product of its digits is 108380160, while the sum is 63.

The spelling of 163457647488 in words is "one hundred sixty-three billion, four hundred fifty-seven million, six hundred forty-seven thousand, four hundred eighty-eight".