2061663011 has 2 divisors, whose sum is σ = 2061663012. Its totient is φ = 2061663010.

The previous prime is 2061662923. The next prime is 2061663013. The reversal of 2061663011 is 1103661602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2061663011 - 2¹⁸ = 2061400867 is a prime.

It is a super-2 number, since 2×2061663011² = 8500908741851172242, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2061663013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2061663013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030831505 + 1030831506.

It is an arithmetic number, because the mean of its divisors is an integer number (1030831506).

Almost surely, 2^2061663011 is an apocalyptic number.

2061663011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2061663011 is an equidigital number, since it uses as much as digits as its factorization.

2061663011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 2061663011 is about 45405.5394307787. The cubic root of 2061663011 is about 1272.7386312593.

The spelling of 2061663011 in words is "two billion, sixty-one million, six hundred sixty-three thousand, eleven".