163671648 has 96 divisors (see below), whose sum is σ = 519934464. Its totient is φ = 44009472.

The previous prime is 163671637. The next prime is 163671659. The reversal of 163671648 is 846176361.

It is an interprime number because it is at equal distance from previous prime (163671637) and next prime (163671659).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4261 + ... + 18587.

It is an arithmetic number, because the mean of its divisors is an integer number (5415984).

Almost surely, 2^163671648 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 163671648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259967232).

163671648 is an abundant number, since it is smaller than the sum of its proper divisors (356262816).

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

163671648 is a wasteful number, since it uses less digits than its factorization.

163671648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14364 (or 14356 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 163671648 is about 12793.4220597931. The cubic root of 163671648 is about 547.0048182173.

The spelling of 163671648 in words is "one hundred sixty-three million, six hundred seventy-one thousand, six hundred forty-eight".