162443142401 has 4 divisors (see below), whose sum is σ = 168044630100. Its totient is φ = 156841654704.

The previous prime is 162443142359. The next prime is 162443142419. The reversal of 162443142401 is 104241344261.

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 27357490801 + 135085651600 = 165401^2 + 367540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162443142401 is a prime.

It is a super-2 number, since 2×162443142401² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162443142451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2800743806 + ... + 2800743863.

It is an arithmetic number, because the mean of its divisors is an integer number (42011157525).

Almost surely, 2^162443142401 is an apocalyptic number.

It is an amenable number.

162443142401 is a deficient number, since it is larger than the sum of its proper divisors (5601487699).

162443142401 is an equidigital number, since it uses as much as digits as its factorization.

162443142401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5601487698.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 162443142401 its reverse (104241344261), we get a palindrome (266684486662).

The spelling of 162443142401 in words is "one hundred sixty-two billion, four hundred forty-three million, one hundred forty-two thousand, four hundred one".