163644496 has 20 divisors (see below), whose sum is σ = 323045172. Its totient is φ = 80278016.

The previous prime is 163644463. The next prime is 163644539. The reversal of 163644496 is 694446361.

It can be written as a sum of positive squares in 2 ways, for example, as 147962896 + 15681600 = 12164^2 + 3960^2 .

It is a super-4 number, since 4×163644496⁴ (a number of 34 digits) contains 4444 as substring.

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, 95641 + ... + 97336.

Almost surely, 2^163644496 is an apocalyptic number.

163644496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

163644496 is a deficient number, since it is larger than the sum of its proper divisors (159400676).

163644496 is a wasteful number, since it uses less digits than its factorization.

163644496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193038 (or 193032 counting only the distinct ones).

The product of its digits is 373248, while the sum is 43.

The square root of 163644496 is about 12792.3608454421. The cubic root of 163644496 is about 546.9745684329.

The spelling of 163644496 in words is "one hundred sixty-three million, six hundred forty-four thousand, four hundred ninety-six".