163003664 has 20 divisors (see below), whose sum is σ = 326710860. Its totient is φ = 78691200.

The previous prime is 163003663. The next prime is 163003681. The reversal of 163003664 is 466300361.

163003664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 53173264 + 109830400 = 7292^2 + 10480^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (163003663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175187 + ... + 176114.

It is an arithmetic number, because the mean of its divisors is an integer number (16335543).

Almost surely, 2^163003664 is an apocalyptic number.

It is an amenable number.

163003664 is an abundant number, since it is smaller than the sum of its proper divisors (163707196).

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

163003664 is a wasteful number, since it uses less digits than its factorization.

163003664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351338 (or 351332 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 163003664 is about 12767.2888273118. The cubic root of 163003664 is about 546.2596501043.

The spelling of 163003664 in words is "one hundred sixty-three million, three thousand, six hundred sixty-four".