2061211667 has 2 divisors, whose sum is σ = 2061211668. Its totient is φ = 2061211666.

The previous prime is 2061211657. The next prime is 2061211687. The reversal of 2061211667 is 7661121602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2061211667 - 2¹⁰ = 2061210643 is a prime.

It is not a weakly prime, because it can be changed into another prime (2061211657) 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, 1030605833 + 1030605834.

It is an arithmetic number, because the mean of its divisors is an integer number (1030605834).

Almost surely, 2^2061211667 is an apocalyptic number.

2061211667 is a deficient number, since it is larger than the sum of its proper divisors (1).

2061211667 is an equidigital number, since it uses as much as digits as its factorization.

2061211667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 2061211667 is about 45400.5690162579. The cubic root of 2061211667 is about 1272.6457475264.

The spelling of 2061211667 in words is "two billion, sixty-one million, two hundred eleven thousand, six hundred sixty-seven".