2020001820169 has 2 divisors, whose sum is σ = 2020001820170. Its totient is φ = 2020001820168.

The previous prime is 2020001820167. The next prime is 2020001820181. The reversal of 2020001820169 is 9610281000202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1463132160000 + 556869660169 = 1209600^2 + 746237^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020001820169 - 2¹ = 2020001820167 is a prime.

It is a super-2 number, since 2×2020001820169² (a number of 25 digits) contains 22 as substring.

Together with 2020001820167, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2020001820169.

It is not a weakly prime, because it can be changed into another prime (2020001820167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010000910084 + 1010000910085.

It is an arithmetic number, because the mean of its divisors is an integer number (1010000910085).

Almost surely, 2^{2020001820169} is an apocalyptic number.

It is an amenable number.

2020001820169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020001820169 is an equidigital number, since it uses as much as digits as its factorization.

2020001820169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 2020001820169 in words is "two trillion, twenty billion, one million, eight hundred twenty thousand, one hundred sixty-nine".