161033333001301 has 4 divisors (see below), whose sum is σ = 166586206553100. Its totient is φ = 155480459449504.

The previous prime is 161033333001287. The next prime is 161033333001313. The reversal of 161033333001301 is 103100333330161.

It is a happy number.

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 121788307779076 + 39245025222225 = 11035774^2 + 6264585^2 .

It is a cyclic number.

It is not a de Polignac number, because 161033333001301 - 2⁹ = 161033333000789 is a prime.

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 161033333001301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161033333001341) 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, 2776436775856 + ... + 2776436775913.

It is an arithmetic number, because the mean of its divisors is an integer number (41646551638275).

Almost surely, 2^{161033333001301} is an apocalyptic number.

It is an amenable number.

161033333001301 is a deficient number, since it is larger than the sum of its proper divisors (5552873551799).

161033333001301 is an equidigital number, since it uses as much as digits as its factorization.

161033333001301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5552873551798.

The product of its (nonzero) digits is 4374, while the sum is 28.

Adding to 161033333001301 its reverse (103100333330161), we get a palindrome (264133666331462).

The spelling of 161033333001301 in words is "one hundred sixty-one trillion, thirty-three billion, three hundred thirty-three million, one thousand, three hundred one".