502556116361 has 4 divisors (see below), whose sum is σ = 541214279172. Its totient is φ = 463897953552.

The previous prime is 502556116339. The next prime is 502556116421. The reversal of 502556116361 is 163611655205.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 126565177600 + 375990938761 = 355760^2 + 613181^2 .

It is a cyclic number.

It is not a de Polignac number, because 502556116361 - 2¹⁸ = 502555854217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (502556116301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19329081386 + ... + 19329081411.

It is an arithmetic number, because the mean of its divisors is an integer number (135303569793).

Almost surely, 2^502556116361 is an apocalyptic number.

It is an amenable number.

502556116361 is a deficient number, since it is larger than the sum of its proper divisors (38658162811).

502556116361 is a wasteful number, since it uses less digits than its factorization.

502556116361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38658162810.

The product of its (nonzero) digits is 162000, while the sum is 41.

It can be divided in two parts, 50255 and 6116361, that added together give a palindrome (6166616).

The spelling of 502556116361 in words is "five hundred two billion, five hundred fifty-six million, one hundred sixteen thousand, three hundred sixty-one".