50561361164 has 12 divisors (see below), whose sum is σ = 88766893488. Its totient is φ = 25199391600.

The previous prime is 50561361163. The next prime is 50561361203. The reversal of 50561361164 is 46116316505.

It is not an unprimeable number, because it can be changed into a prime (50561361163) 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, 20320847 + ... + 20323334.

It is an arithmetic number, because the mean of its divisors is an integer number (7397241124).

Almost surely, 2^50561361164 is an apocalyptic number.

It is an amenable number.

50561361164 is a deficient number, since it is larger than the sum of its proper divisors (38205532324).

50561361164 is a wasteful number, since it uses less digits than its factorization.

50561361164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40644496 (or 40644494 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

Adding to 50561361164 its reverse (46116316505), we get a palindrome (96677677669).

The spelling of 50561361164 in words is "fifty billion, five hundred sixty-one million, three hundred sixty-one thousand, one hundred sixty-four".