203245042544 has 20 divisors (see below), whose sum is σ = 394700942880. Its totient is φ = 101386734720.

The previous prime is 203245042513. The next prime is 203245042577. The reversal of 203245042544 is 445240542302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14729549 + ... + 14743340.

It is an arithmetic number, because the mean of its divisors is an integer number (19735047144).

Almost surely, 2^203245042544 is an apocalyptic number.

It is an amenable number.

203245042544 is a deficient number, since it is larger than the sum of its proper divisors (191455900336).

203245042544 is a wasteful number, since it uses less digits than its factorization.

203245042544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29473328 (or 29473322 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 35.

Adding to 203245042544 its reverse (445240542302), we get a palindrome (648485584846).

The spelling of 203245042544 in words is "two hundred three billion, two hundred forty-five million, forty-two thousand, five hundred forty-four".