2002155603 has 32 divisors (see below), whose sum is σ = 3283361280. Its totient is φ = 1059125760.

The previous prime is 2002155601. The next prime is 2002155691. The reversal of 2002155603 is 3065512002.

It is not a de Polignac number, because 2002155603 - 2¹ = 2002155601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2002155601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24193 + ... + 67746.

It is an arithmetic number, because the mean of its divisors is an integer number (102605040).

Almost surely, 2^2002155603 is an apocalyptic number.

2002155603 is a deficient number, since it is larger than the sum of its proper divisors (1281205677).

2002155603 is a wasteful number, since it uses less digits than its factorization.

2002155603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92027.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2002155603 is about 44745.4534338406. The cubic root of 2002155603 is about 1260.3735356363.

Adding to 2002155603 its reverse (3065512002), we get a palindrome (5067667605).

The spelling of 2002155603 in words is "two billion, two million, one hundred fifty-five thousand, six hundred three".