500663188482721 has 16 divisors (see below), whose sum is σ = 546465491385408. Its totient is φ = 454908822068800.

The previous prime is 500663188482719. The next prime is 500663188482731. The reversal of 500663188482721 is 127284881366005.

It is not a de Polignac number, because 500663188482721 - 2¹ = 500663188482719 is a prime.

It is a super-2 number, since 2×500663188482721² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 500663188482721.

It is not an unprimeable number, because it can be changed into a prime (500663188482701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402501486 + ... + 403743448.

It is an arithmetic number, because the mean of its divisors is an integer number (34154093211588).

Almost surely, 2^{500663188482721} is an apocalyptic number.

It is an amenable number.

500663188482721 is a deficient number, since it is larger than the sum of its proper divisors (45802302902687).

500663188482721 is a wasteful number, since it uses less digits than its factorization.

500663188482721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261232.

The product of its (nonzero) digits is 30965760, while the sum is 61.

The spelling of 500663188482721 in words is "five hundred trillion, six hundred sixty-three billion, one hundred eighty-eight million, four hundred eighty-two thousand, seven hundred twenty-one".