505363111161 has 8 divisors (see below), whose sum is σ = 713453804064. Its totient is φ = 317090579520.

The previous prime is 505363111151. The next prime is 505363111241. The reversal of 505363111161 is 161111363505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505363111161 - 2⁵ = 505363111129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505363111151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4954540255 + ... + 4954540356.

It is an arithmetic number, because the mean of its divisors is an integer number (89181725508).

Almost surely, 2^505363111161 is an apocalyptic number.

505363111161 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

505363111161 is a deficient number, since it is larger than the sum of its proper divisors (208090692903).

505363111161 is a wasteful number, since it uses less digits than its factorization.

505363111161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9909080631.

The product of its (nonzero) digits is 8100, while the sum is 33.

Adding to 505363111161 its reverse (161111363505), we get a palindrome (666474474666).

The spelling of 505363111161 in words is "five hundred five billion, three hundred sixty-three million, one hundred eleven thousand, one hundred sixty-one".