2002686316669 has 2 divisors, whose sum is σ = 2002686316670. Its totient is φ = 2002686316668.

The previous prime is 2002686316663. The next prime is 2002686316699. The reversal of 2002686316669 is 9666136862002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2002686316569 + 100 = 1415163^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002686316669 - 2²¹ = 2002684219517 is a prime.

It is a super-2 number, since 2×2002686316669² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002686316663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001343158334 + 1001343158335.

It is an arithmetic number, because the mean of its divisors is an integer number (1001343158335).

Almost surely, 2^{2002686316669} is an apocalyptic number.

It is an amenable number.

2002686316669 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002686316669 is an equidigital number, since it uses as much as digits as its factorization.

2002686316669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6718464, while the sum is 55.

The spelling of 2002686316669 in words is "two trillion, two billion, six hundred eighty-six million, three hundred sixteen thousand, six hundred sixty-nine".