503045331250161 has 64 divisors (see below), whose sum is σ = 780776630691840. Its totient is φ = 282171831897600.

The previous prime is 503045331250159. The next prime is 503045331250183. The reversal of 503045331250161 is 161052133540305.

It is not a de Polignac number, because 503045331250161 - 2¹ = 503045331250159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (503045331250151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 227584230 + ... + 229783968.

It is an arithmetic number, because the mean of its divisors is an integer number (12199634854560).

Almost surely, 2^{503045331250161} is an apocalyptic number.

It is an amenable number.

503045331250161 is a deficient number, since it is larger than the sum of its proper divisors (277731299441679).

503045331250161 is a wasteful number, since it uses less digits than its factorization.

503045331250161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200774.

The product of its (nonzero) digits is 162000, while the sum is 39.

Adding to 503045331250161 its reverse (161052133540305), we get a palindrome (664097464790466).

The spelling of 503045331250161 in words is "five hundred three trillion, forty-five billion, three hundred thirty-one million, two hundred fifty thousand, one hundred sixty-one".