2003155255044 has 48 divisors (see below), whose sum is σ = 5193445098240. Its totient is φ = 667708181280.

The previous prime is 2003155255021. The next prime is 2003155255097. The reversal of 2003155255044 is 4405525513002.

2003155255044 is a `hidden beast` number, since 2 + 0 + 0 + 3 + 15 + 52 + 550 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10853317 + ... + 11036339.

It is an arithmetic number, because the mean of its divisors is an integer number (108196772880).

Almost surely, 2^{2003155255044} is an apocalyptic number.

It is an amenable number.

2003155255044 is an abundant number, since it is smaller than the sum of its proper divisors (3190289843196).

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

2003155255044 is a wasteful number, since it uses less digits than its factorization.

2003155255044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284377 (or 284369 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 2003155255044 in words is "two trillion, three billion, one hundred fifty-five million, two hundred fifty-five thousand, forty-four".