168571648 has 72 divisors (see below), whose sum is σ = 404875520. Its totient is φ = 68428800.

The previous prime is 168571633. The next prime is 168571649. The reversal of 168571648 is 846175861.

It is a junction number, because it is equal to n+sod(n) for n = 168571598 and 168571607.

It is not an unprimeable number, because it can be changed into a prime (168571649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31573 + ... + 36523.

Almost surely, 2^168571648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168571648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202437760).

168571648 is an abundant number, since it is smaller than the sum of its proper divisors (236303872).

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

168571648 is an equidigital number, since it uses as much as digits as its factorization.

168571648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4993 (or 4979 counting only the distinct ones).

The product of its digits is 322560, while the sum is 46.

The square root of 168571648 is about 12983.5144702811. The cubic root of 168571648 is about 552.4099733880.

The spelling of 168571648 in words is "one hundred sixty-eight million, five hundred seventy-one thousand, six hundred forty-eight".