2002201171693 has 2 divisors, whose sum is σ = 2002201171694. Its totient is φ = 2002201171692.

The previous prime is 2002201171657. The next prime is 2002201171699. The reversal of 2002201171693 is 3961711022002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2001709973124 + 491198569 = 1414818^2 + 22163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002201171693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002201171699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001100585846 + 1001100585847.

It is an arithmetic number, because the mean of its divisors is an integer number (1001100585847).

Almost surely, 2^{2002201171693} is an apocalyptic number.

It is an amenable number.

2002201171693 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002201171693 is an equidigital number, since it uses as much as digits as its factorization.

2002201171693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

Adding to 2002201171693 its reverse (3961711022002), we get a palindrome (5963912193695).

The spelling of 2002201171693 in words is "two trillion, two billion, two hundred one million, one hundred seventy-one thousand, six hundred ninety-three".