163680003 has 12 divisors (see below), whose sum is σ = 248870440. Its totient is φ = 103376736.

The previous prime is 163679987. The next prime is 163680007. The reversal of 163680003 is 300086361.

It is not a de Polignac number, because 163680003 - 2⁴ = 163679987 is a prime.

It is a super-2 number, since 2×163680003² = 53582286764160018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163680007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 478426 + ... + 478767.

Almost surely, 2^163680003 is an apocalyptic number.

163680003 is a deficient number, since it is larger than the sum of its proper divisors (85190437).

163680003 is a wasteful number, since it uses less digits than its factorization.

163680003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957218 (or 957215 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 163680003 is about 12793.7485906203. The cubic root of 163680003 is about 547.0141257700.

The spelling of 163680003 in words is "one hundred sixty-three million, six hundred eighty thousand, three".