163649648 has 20 divisors (see below), whose sum is σ = 321416928. Its totient is φ = 80703360.

The previous prime is 163649627. The next prime is 163649663. The reversal of 163649648 is 846946361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68888 + ... + 71223.

Almost surely, 2^163649648 is an apocalyptic number.

It is an amenable number.

163649648 is a deficient number, since it is larger than the sum of its proper divisors (157767280).

163649648 is a wasteful number, since it uses less digits than its factorization.

163649648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140192 (or 140186 counting only the distinct ones).

The product of its digits is 746496, while the sum is 47.

The square root of 163649648 is about 12792.5622140367. The cubic root of 163649648 is about 546.9803084841.

The spelling of 163649648 in words is "one hundred sixty-three million, six hundred forty-nine thousand, six hundred forty-eight".