161164301013 has 12 divisors (see below), whose sum is σ = 232825958508. Its totient is φ = 107427600000.

The previous prime is 161164300991. The next prime is 161164301033. The reversal of 161164301013 is 310103461161.

161164301013 is a `hidden beast` number, since 1 + 6 + 1 + 1 + 643 + 0 + 1 + 0 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 156747103569 + 4417197444 = 395913^2 + 66462^2 .

It is not a de Polignac number, because 161164301013 - 2²⁶ = 161097192149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161164301033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1205238 + ... + 1332263.

It is an arithmetic number, because the mean of its divisors is an integer number (19402163209).

Almost surely, 2^161164301013 is an apocalyptic number.

It is an amenable number.

161164301013 is a deficient number, since it is larger than the sum of its proper divisors (71661657495).

161164301013 is a wasteful number, since it uses less digits than its factorization.

161164301013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544564 (or 2544561 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

Adding to 161164301013 its reverse (310103461161), we get a palindrome (471267762174).

The spelling of 161164301013 in words is "one hundred sixty-one billion, one hundred sixty-four million, three hundred one thousand, thirteen".