2061666107 has 2 divisors, whose sum is σ = 2061666108. Its totient is φ = 2061666106.

The previous prime is 2061666097. The next prime is 2061666119. The reversal of 2061666107 is 7016661602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2061666107 - 2⁴ = 2061666091 is a prime.

It is not a weakly prime, because it can be changed into another prime (2061666127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030833053 + 1030833054.

It is an arithmetic number, because the mean of its divisors is an integer number (1030833054).

Almost surely, 2^2061666107 is an apocalyptic number.

2061666107 is a deficient number, since it is larger than the sum of its proper divisors (1).

2061666107 is an equidigital number, since it uses as much as digits as its factorization.

2061666107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 2061666107 is about 45405.5735235224. The cubic root of 2061666107 is about 1272.7392683497.

The spelling of 2061666107 in words is "two billion, sixty-one million, six hundred sixty-six thousand, one hundred seven".