2021161067 has 2 divisors, whose sum is σ = 2021161068. Its totient is φ = 2021161066.

The previous prime is 2021161057. The next prime is 2021161111. The reversal of 2021161067 is 7601611202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021161067 - 2¹⁸ = 2020898923 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021161027) 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 as a sum of consecutive naturals, namely, 1010580533 + 1010580534.

It is an arithmetic number, because the mean of its divisors is an integer number (1010580534).

Almost surely, 2^2021161067 is an apocalyptic number.

2021161067 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021161067 is an equidigital number, since it uses as much as digits as its factorization.

2021161067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 2021161067 is about 44957.3249537826. The cubic root of 2021161067 is about 1264.3490153003.

Adding to 2021161067 its reverse (7601611202), we get a palindrome (9622772269).

The spelling of 2021161067 in words is "two billion, twenty-one million, one hundred sixty-one thousand, sixty-seven".