2026166189 has 2 divisors, whose sum is σ = 2026166190. Its totient is φ = 2026166188.

The previous prime is 2026166183. The next prime is 2026166269. The reversal of 2026166189 is 9816616202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1918878025 + 107288164 = 43805^2 + 10358^2 .

It is a cyclic number.

It is not a de Polignac number, because 2026166189 - 2¹⁶ = 2026100653 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2026166183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1013083094 + 1013083095.

It is an arithmetic number, because the mean of its divisors is an integer number (1013083095).

Almost surely, 2^2026166189 is an apocalyptic number.

It is an amenable number.

2026166189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2026166189 is an equidigital number, since it uses as much as digits as its factorization.

2026166189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 2026166189 is about 45012.9557905277. The cubic root of 2026166189 is about 1265.3918160118.

The spelling of 2026166189 in words is "two billion, twenty-six million, one hundred sixty-six thousand, one hundred eighty-nine".