2002161006673 has 4 divisors (see below), whose sum is σ = 2089211485248. Its totient is φ = 1915110528100.

The previous prime is 2002161006647. The next prime is 2002161006679. The reversal of 2002161006673 is 3766001612002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002161006673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002161006679) 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, 43525239253 + ... + 43525239298.

It is an arithmetic number, because the mean of its divisors is an integer number (522302871312).

Almost surely, 2^{2002161006673} is an apocalyptic number.

2002161006673 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2002161006673 is a deficient number, since it is larger than the sum of its proper divisors (87050478575).

2002161006673 is an equidigital number, since it uses as much as digits as its factorization.

2002161006673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87050478574.

The product of its (nonzero) digits is 18144, while the sum is 34.

Adding to 2002161006673 its reverse (3766001612002), we get a palindrome (5768162618675).

The spelling of 2002161006673 in words is "two trillion, two billion, one hundred sixty-one million, six thousand, six hundred seventy-three".