203516365045 has 48 divisors (see below), whose sum is σ = 302053177008. Its totient is φ = 130799370240.

The previous prime is 203516365043. The next prime is 203516365051. The reversal of 203516365045 is 540563615302.

203516365045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 19611761764 + 183904603281 = 140042^2 + 428841^2 .

It is not a de Polignac number, because 203516365045 - 2¹ = 203516365043 is a prime.

It is a super-2 number, since 2×203516365045² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203516364989 and 203516365007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203516365043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 902389 + ... + 1105141.

It is an arithmetic number, because the mean of its divisors is an integer number (6292774521).

Almost surely, 2^203516365045 is an apocalyptic number.

It is an amenable number.

203516365045 is a deficient number, since it is larger than the sum of its proper divisors (98536811963).

203516365045 is a wasteful number, since it uses less digits than its factorization.

203516365045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203030 (or 203023 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 203516365045 in words is "two hundred three billion, five hundred sixteen million, three hundred sixty-five thousand, forty-five".