163061603 has 6 divisors (see below), whose sum is σ = 173217996. Its totient is φ = 153469472.

The previous prime is 163061593. The next prime is 163061611. The reversal of 163061603 is 306160361.

It is not a de Polignac number, because 163061603 - 2⁶ = 163061539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163061683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 281825 + ... + 282402.

It is an arithmetic number, because the mean of its divisors is an integer number (28869666).

Almost surely, 2^163061603 is an apocalyptic number.

163061603 is a deficient number, since it is larger than the sum of its proper divisors (10156393).

163061603 is an equidigital number, since it uses as much as digits as its factorization.

163061603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564261 (or 564244 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 163061603 is about 12769.5576665756. The cubic root of 163061603 is about 546.3243643729.

The spelling of 163061603 in words is "one hundred sixty-three million, sixty-one thousand, six hundred three".