2003645190605 has 16 divisors (see below), whose sum is σ = 2426568236928. Its totient is φ = 1588158936000.

The previous prime is 2003645190581. The next prime is 2003645190607. The reversal of 2003645190605 is 5060915463002.

It is not a de Polignac number, because 2003645190605 - 2⁶ = 2003645190541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003645190607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2010626 + ... + 2837235.

It is an arithmetic number, because the mean of its divisors is an integer number (151660514808).

Almost surely, 2^{2003645190605} is an apocalyptic number.

It is an amenable number.

2003645190605 is a deficient number, since it is larger than the sum of its proper divisors (422923046323).

2003645190605 is a wasteful number, since it uses less digits than its factorization.

2003645190605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4848628.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 2003645190605 in words is "two trillion, three billion, six hundred forty-five million, one hundred ninety thousand, six hundred five".