2003500164 has 24 divisors (see below), whose sum is σ = 4692219840. Its totient is φ = 665349664.

The previous prime is 2003500159. The next prime is 2003500171. The reversal of 2003500164 is 4610053002.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2003500164.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307104 + ... + 313559.

It is an arithmetic number, because the mean of its divisors is an integer number (195509160).

Almost surely, 2^2003500164 is an apocalyptic number.

It is an amenable number.

2003500164 is an abundant number, since it is smaller than the sum of its proper divisors (2688719676).

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

2003500164 is a wasteful number, since it uses less digits than its factorization.

2003500164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620939 (or 620937 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2003500164 is about 44760.4754666436. The cubic root of 2003500164 is about 1260.6556099316.

Adding to 2003500164 its reverse (4610053002), we get a palindrome (6613553166).

The spelling of 2003500164 in words is "two billion, three million, five hundred thousand, one hundred sixty-four".