203553355045 has 16 divisors (see below), whose sum is σ = 246325074048. Its totient is φ = 161472916800.

The previous prime is 203553355037. The next prime is 203553355111. The reversal of 203553355045 is 540553355302.

It is not a de Polignac number, because 203553355045 - 2³ = 203553355037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203553354989 and 203553355007.

It is a congruent number.

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, 116070 + ... + 648520.

It is an arithmetic number, because the mean of its divisors is an integer number (15395317128).

Almost surely, 2^203553355045 is an apocalyptic number.

It is an amenable number.

203553355045 is a deficient number, since it is larger than the sum of its proper divisors (42771719003).

203553355045 is a wasteful number, since it uses less digits than its factorization.

203553355045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533100.

The product of its (nonzero) digits is 675000, while the sum is 40.

The spelling of 203553355045 in words is "two hundred three billion, five hundred fifty-three million, three hundred fifty-five thousand, forty-five".